/** Evaluate effective AoA (i.e., taking into account airfoil twist) */
public double calculateAlphaEffective() {
_alphaEffective =
Amount.valueOf(
geometry.get_twist().getEstimatedValue() + _alphaRoot.getEstimatedValue(), SI.RADIAN);
return _alphaEffective.getEstimatedValue();
}
/**
* This function plots the airfoil drag polar using a parabolic approssimation.
*
* @author Manuela Ruocco
*/
public void plotPolar() {
System.out.println("\n \n-----------------------------------------------------");
System.out.println("STARTING PLOT AIRFOIL DRAG POLAR");
System.out.println("-----------------------------------------------------");
MyArray alphaArray = new MyArray();
int _numberOfAlpha = 40;
double[] cdArrayPolar = new double[_numberOfAlpha];
double[] clArrayPolar = new double[_numberOfAlpha];
Amount<Angle> alphaActualAmount;
Amount<Angle> alphaStart = Amount.valueOf(toRadians(-6.), SI.RADIAN);
Amount<Angle> alphaEnd = Amount.valueOf(toRadians(12.), SI.RADIAN);
alphaArray.setDouble(
MyArrayUtils.linspace(
alphaStart.getEstimatedValue(), alphaEnd.getEstimatedValue(), _numberOfAlpha));
String folderPathPolar =
MyConfiguration.currentDirectoryString + File.separator + "out" + File.separator;
String subfolderPathPolar =
JPADStaticWriteUtils.createNewFolder(folderPathPolar + "Polar_Airfoil" + File.separator);
for (int i = 0; i < _numberOfAlpha; i++) {
alphaActualAmount = Amount.valueOf(alphaArray.get(i), SI.RADIAN);
clArrayPolar[i] = calculateClAtAlpha(alphaActualAmount.getEstimatedValue());
cdArrayPolar[i] = calculateCdAtAlpha(alphaActualAmount);
}
MyChartToFileUtils.plotNoLegend(
cdArrayPolar,
clArrayPolar,
null,
null,
null,
null,
"Cd",
"Cl",
"",
"",
subfolderPathPolar,
"Polar_Airfoil ");
System.out.println("\n \n-----------------------------------------------------");
System.out.println("DONE");
System.out.println("-----------------------------------------------------");
}
public Finocyl() {
try {
setLength(Amount.valueOf(70, SI.MILLIMETER));
} catch (PropertyVetoException e) {
e.printStackTrace();
}
generateGeometry();
}
public void plotClvsAlpha(String subfolderPath, String name) {
System.out.println("\n \n-----------------------------------------------------");
System.out.println("STARTING PLOT AIRFOIL CL vs ALPHA CURVE " + name);
System.out.println("-----------------------------------------------------");
MyArray alphaArray = new MyArray();
int _numberOfAlpha = 60;
double[] clArray = new double[_numberOfAlpha];
double[] alphaArrayDeg = new double[_numberOfAlpha];
Amount<Angle> alphaActualAmount;
Amount<Angle> alphaStart = Amount.valueOf(toRadians(-6.), SI.RADIAN);
Amount<Angle> alphaEnd = Amount.valueOf(toRadians(25.0), SI.RADIAN);
alphaArray.setDouble(
MyArrayUtils.linspace(
alphaStart.getEstimatedValue(), alphaEnd.getEstimatedValue(), _numberOfAlpha));
for (int i = 0; i < _numberOfAlpha; i++) {
alphaActualAmount = Amount.valueOf(alphaArray.get(i), SI.RADIAN);
clArray[i] = calculateClAtAlpha(alphaActualAmount.getEstimatedValue());
alphaArrayDeg[i] = alphaActualAmount.to(NonSI.DEGREE_ANGLE).getEstimatedValue();
}
MyChartToFileUtils.plotNoLegend(
alphaArrayDeg,
clArray,
null,
null,
null,
null,
"alpha",
"CL",
"deg",
"",
subfolderPath,
"CL vs alpha Airfoil" + name);
System.out.println("-----------------------------------------------------");
System.out.println("\n DONE");
System.out.println("-----------------------------------------------------");
}
public double calculateCdAtClLinear(double cl) {
double qValue = _clStar - _clAlpha.getEstimatedValue() * _alphaStar.getEstimatedValue();
Amount<Angle> alpha;
double alphaTemp;
alphaTemp = (cl - qValue) / _clAlpha.getEstimatedValue();
alpha = Amount.valueOf(alphaTemp, SI.RADIAN);
double cdAirfoil = calculateCdAtAlpha(alpha);
return cdAirfoil;
}
public InputOutputTree() {
alphaCurrent = Amount.valueOf(0.0, NonSI.DEGREE_ANGLE);
alphaInitial = Amount.valueOf(0.0, NonSI.DEGREE_ANGLE);
alphaFinal = Amount.valueOf(0.0, NonSI.DEGREE_ANGLE);
sweepLE = Amount.valueOf(0.0, NonSI.DEGREE_ANGLE);
altitude = Amount.valueOf(0.0, SI.METER);
surface = Amount.valueOf(0.0, SI.SQUARE_METRE);
chordDistribution = new ArrayList<Amount>();
xLEDistribution = new ArrayList<Amount>();
dihedralDistribution = new ArrayList<Amount>();
twistDistribution = new ArrayList<Amount>();
alphaZeroLiftDistribution = new ArrayList<Amount>();
alphaStarDistribution = new ArrayList<Amount>();
maximumliftCoefficientDistribution = new ArrayList<Double>();
yAdimensionalStationInput = new ArrayList<Double>();
machNumber = 0.0;
aspectRatio = 0.0;
adimensionalKinkStation = 0.0;
meanThickness = 0.0;
numberOfAlpha = 0;
numberOfPointSemispan = 0;
numberOfSections = 0;
cLVsAlphaVector = new double[numberOfAlphaCL];
alphaVector = new double[numberOfAlphaCL];
}
public class ConstraintUtils {
private static final Amount<Duration> ZERO = Amount.valueOf(0, SI.SECOND);
public static PeriodicTemporalConstraint createConstraint(
EPlanElement element,
Timepoint endpoint,
Amount<Duration> earliest,
Amount<Duration> latest,
String rationale) {
PeriodicTemporalConstraint constraint =
ConstraintsFactory.eINSTANCE.createPeriodicTemporalConstraint();
constraint.getPoint().setElement(element);
constraint.getPoint().setEndpoint(endpoint);
constraint.setEarliest(earliest);
constraint.setLatest(latest);
constraint.setRationale(rationale);
return constraint;
}
public static BinaryTemporalConstraint createConstraint(
EPlanElement elementA,
Timepoint endpointA,
EPlanElement elementB,
Timepoint endpointB,
Amount<Duration> min,
Amount<Duration> max,
String rationale) {
BinaryTemporalConstraint constraint =
ConstraintsFactory.eINSTANCE.createBinaryTemporalConstraint();
constraint.getPointA().setElement(elementA);
constraint.getPointA().setEndpoint(endpointA);
constraint.getPointB().setElement(elementB);
constraint.getPointB().setEndpoint(endpointB);
constraint.setMinimumBminusA(min);
constraint.setMaximumBminusA(max);
constraint.setRationale(rationale);
return constraint;
}
public static ConstraintPoint createConstraintPoint(
EPlanElement planElement, Timepoint timepoint) {
ConstraintPoint constraintPoint = ConstraintsFactory.eINSTANCE.createConstraintPoint();
constraintPoint.setElement(planElement);
constraintPoint.setEndpoint(timepoint);
return constraintPoint;
}
/*
* Periodic constraint utilities
*/
public static Date getPeriodicConstraintEarliestDate(PeriodicTemporalConstraint constraint) {
Amount<Duration> earliest = constraint.getEarliest();
if (earliest != null) {
Date midnight = getPeriodicConstraintDate(constraint);
if (midnight != null) {
return DateUtils.add(midnight, earliest);
}
}
return null;
}
public static Date getPeriodicConstraintLatestDate(PeriodicTemporalConstraint constraint) {
Amount<Duration> latest = constraint.getLatest();
if (latest != null) {
Date midnight = getPeriodicConstraintDate(constraint);
if (midnight != null) {
return DateUtils.add(midnight, latest);
}
}
return null;
}
private static Date getPeriodicConstraintDate(PeriodicTemporalConstraint constraint) {
ConstraintPoint point = constraint.getPoint();
Date date = point.getDate();
if (date == null) {
return null;
}
return MissionCalendarUtils.getMidnight(date);
}
public static Amount<Duration> getPeriodicConstraintOffset(Date date) {
if (date == null) {
return null;
}
Date midnight = MissionCalendarUtils.getMidnight(date);
Amount<Duration> offset = DateUtils.subtract(date, midnight);
return offset;
}
/*
* Attach/detach constraints
*/
public static void attachConstraint(final PeriodicTemporalConstraint constraint) {
ConstraintsMember member =
constraint.getPoint().getElement().getMember(ConstraintsMember.class, true);
member.getPeriodicTemporalConstraints().add(constraint);
}
public static void detachConstraint(final PeriodicTemporalConstraint constraint) {
ConstraintsMember member =
constraint.getPoint().getElement().getMember(ConstraintsMember.class, true);
member.getPeriodicTemporalConstraints().remove(constraint);
}
public static void attachConstraint(final BinaryTemporalConstraint constraint) {
ConstraintsMember memberA =
constraint.getPointA().getElement().getMember(ConstraintsMember.class, true);
memberA.getBinaryTemporalConstraints().add(constraint);
ConstraintsMember memberB =
constraint.getPointB().getElement().getMember(ConstraintsMember.class, true);
memberB.getBinaryTemporalConstraints().add(constraint);
}
public static void detachConstraint(final BinaryTemporalConstraint constraint) {
EPlanElement elementA = constraint.getPointA().getElement();
if (elementA != null) {
ConstraintsMember memberA = elementA.getMember(ConstraintsMember.class, true);
memberA.getBinaryTemporalConstraints().remove(constraint);
}
EPlanElement elementB = constraint.getPointB().getElement();
if (elementB != null) {
ConstraintsMember memberB = elementB.getMember(ConstraintsMember.class, true);
memberB.getBinaryTemporalConstraints().remove(constraint);
}
}
/*
* Access constraints
*/
public static Collection<ConstraintsMember> getConstraintMembersRecursively(EPlan plan) {
return EPlanUtils.getMembers(plan, ConstraintsMember.class);
}
public static List<PeriodicTemporalConstraint> getPeriodicConstraints(
EPlanElement element, boolean mustExist) {
ConstraintsMember constraintsMember = element.getMember(ConstraintsMember.class, mustExist);
if (constraintsMember == null) {
return Collections.emptyList();
}
return constraintsMember.getPeriodicTemporalConstraints();
}
/**
* Gets the constraint with the Earliest and Latest Start or End of a plan element.
*
* @param element -- activity or group
* @param whichEnd -- START or END
* @return null if unconstrained, else the constraint
*/
public static PeriodicTemporalConstraint getPeriodicConstraint(
EPlanElement element, Timepoint whichEnd) {
List<PeriodicTemporalConstraint> periodicConstraints = getPeriodicConstraints(element, false);
if (periodicConstraints == null) return null;
for (PeriodicTemporalConstraint constraint : periodicConstraints) {
if (whichEnd == constraint.getPoint().getEndpoint()) {
return constraint;
}
}
return null;
}
public static List<PeriodicTemporalConstraint> getPeriodicConstraints(
EPlanElement element, Timepoint timepoint, boolean mustExist) {
ConstraintsMember constraintsMember = element.getMember(ConstraintsMember.class, mustExist);
if (constraintsMember == null) {
return Collections.emptyList();
}
List<PeriodicTemporalConstraint> result = new ArrayList<PeriodicTemporalConstraint>();
for (PeriodicTemporalConstraint constraint :
constraintsMember.getPeriodicTemporalConstraints()) {
ConstraintPoint point = constraint.getPoint();
if ((point.getElement() == element) && (point.getEndpoint() == timepoint)) {
result.add(constraint);
}
}
return result;
}
public static List<BinaryTemporalConstraint> getBinaryConstraints(
EPlanElement element, boolean mustExist) {
ConstraintsMember constraintsMember = element.getMember(ConstraintsMember.class, mustExist);
if (constraintsMember == null) {
return Collections.emptyList();
}
return constraintsMember.getBinaryTemporalConstraints();
}
public static List<BinaryTemporalConstraint> getBinaryConstraints(
EPlanElement element, Timepoint timepoint, boolean mustExist) {
ConstraintsMember constraintsMember = element.getMember(ConstraintsMember.class, mustExist);
if (constraintsMember == null) {
return Collections.emptyList();
}
List<BinaryTemporalConstraint> result = new ArrayList<BinaryTemporalConstraint>();
for (BinaryTemporalConstraint constraint : constraintsMember.getBinaryTemporalConstraints()) {
ConstraintPoint pointA = constraint.getPointA();
ConstraintPoint pointB = constraint.getPointB();
if (((pointA.getElement() == element) && (pointA.getEndpoint() == timepoint))
|| ((pointB.getElement() == element) && (pointB.getEndpoint() == timepoint))) {
result.add(constraint);
}
}
return result;
}
public static List<BinaryTemporalConstraint> getBinaryStartConstraints(
EPlanElement element, boolean mustExist) {
return getBinaryConstraints(element, Timepoint.START, mustExist);
}
public static List<BinaryTemporalConstraint> getBinaryEndConstraints(
EPlanElement element, boolean mustExist) {
return getBinaryConstraints(element, Timepoint.END, mustExist);
}
/**
* Given a particular constraint and EPlan (the context of the plan elements), this method will
* determine the elements that the constraint constrains.
*
* @param constraint
* @param ePlan
* @return
*/
public static LinkedHashSet<EPlanElement> getConstrainedEPlanElements(
BinaryTemporalConstraint constraint) {
LinkedHashSet<EPlanElement> elements = new LinkedHashSet<EPlanElement>();
elements.add(constraint.getPointA().getElement());
elements.add(constraint.getPointB().getElement());
return elements;
}
/**
* Creates a new binary constraint which is the reverse but equivalent to the original constraint.
* For example, "A must end before B starts" can also be stated as "B must start after A ends".
*
* @param originalConstraint
* @return
*/
public static BinaryTemporalConstraint reverseConstraint(
BinaryTemporalConstraint originalConstraint) {
if (originalConstraint == null) {
// Might happen if an activity was removed or filtered out of an import.
return null;
}
BinaryTemporalConstraint newConstraint = EMFUtils.copy(originalConstraint);
newConstraint.getPointA().setElement(originalConstraint.getPointB().getElement());
newConstraint.getPointA().setEndpoint(originalConstraint.getPointB().getEndpoint());
newConstraint.getPointA().setAnchor(originalConstraint.getPointB().getAnchor());
newConstraint.getPointB().setElement(originalConstraint.getPointA().getElement());
newConstraint.getPointB().setEndpoint(originalConstraint.getPointA().getEndpoint());
newConstraint.getPointB().setAnchor(originalConstraint.getPointA().getAnchor());
if (originalConstraint.getMaximumBminusA() != null) {
newConstraint.setMinimumBminusA(originalConstraint.getMaximumBminusA().opposite());
} else {
newConstraint.setMinimumBminusA(null);
}
if (originalConstraint.getMinimumBminusA() != null) {
newConstraint.setMaximumBminusA(originalConstraint.getMinimumBminusA().opposite());
} else {
newConstraint.setMaximumBminusA(null);
}
return newConstraint;
}
/**
* Returns a short description of the type of constraint.
*
* @param constraint
* @param includeThat
* @return null if the constraint is invalid
*/
public static String getDescription(BinaryTemporalConstraint constraint, boolean includeThat) {
Amount<Duration> minimum = constraint.getMinimumBminusA();
Amount<Duration> maximum = constraint.getMaximumBminusA();
// construct the string
if (minimum == null && maximum == null) {
return null;
}
String minimumStr =
minimum == null ? null : EnsembleAmountFormat.INSTANCE.formatAmount(minimum.abs());
String maximumStr =
maximum == null ? null : EnsembleAmountFormat.INSTANCE.formatAmount(maximum.abs());
String string = "";
if (minimum == null && maximum != null) {
// any time after
if (maximum.approximates(ZERO)) {
string += "anytime after";
}
// at least after
else if (maximum.isLessThan(ZERO)) {
string += "at least " + maximumStr + " after";
}
// at most before
else { // max > 0
string += "at most " + maximumStr + " before";
}
} else if (maximum == null && minimum != null) {
// anytime before
if (minimum.approximates(ZERO)) {
string += "anytime before";
}
// at most after
else if (minimum.isLessThan(ZERO)) {
string += "at most " + minimumStr + " after";
}
// at least before
else { // min > 0
string += "at least " + minimumStr + " before";
}
}
// at the same time
else if (minimum != null
&& minimum.approximates(ZERO)
&& maximum != null
&& maximum.approximates(ZERO)) {
string += "at the same time";
if (includeThat) {
if (constraint.getPointB().hasEndpoint()) {
string += " that";
} else {
string += " as";
}
}
}
// exactly
else if (minimum != null && minimum.approximates(maximum)) {
string += "exactly ";
string += minimumStr;
if (minimum.isLessThan(ZERO)) {
string += " after";
} else { // min > 0
string += " before";
}
}
// between
else {
string += "between ";
String minAndMaxStr;
if (maximum != null && minimum != null && minimum.abs().isLessThan(maximum.abs())) {
minAndMaxStr = minimumStr + " and " + maximumStr;
} else {
minAndMaxStr = maximumStr + " and " + minimumStr;
}
// after
if (minimum != null
&& maximum != null
&& !minimum.isGreaterThan(ZERO)
&& !maximum.isGreaterThan(ZERO)) { // min <= 0 && max <= 0
string += minAndMaxStr;
string += " after";
}
// before
else if (minimum != null
&& maximum != null
&& !minimum.isLessThan(ZERO)
&& !maximum.isLessThan(ZERO)) { // min >= 0 && max >= 0
string += minAndMaxStr;
string += " before";
}
// before and after
else if (minimum != null
&& minimum.isLessThan(ZERO)
&& maximum != null
&& maximum.isGreaterThan(ZERO)) {
string += maximumStr + " before and " + minimumStr + " after";
} else {
return null;
}
}
return string;
}
public static List<BinaryTemporalConstraint> convertChainToBinaryTemporalConstraints(
TemporalChain chain) {
List<BinaryTemporalConstraint> constraints = new ArrayList<BinaryTemporalConstraint>();
List<EPlanElement> chainedElements = chain.getElements();
for (int i = 1; i < chainedElements.size(); i++) {
EPlanElement a = chainedElements.get(i - 1);
EPlanElement b = chainedElements.get(i);
BinaryTemporalConstraint constraint =
createConstraint(
a, Timepoint.END, b, Timepoint.START, AmountUtils.exactZero(SI.SECOND), null, "");
constraints.add(constraint);
}
return constraints;
}
public static boolean isAnchorable(EStructuralFeature feature) {
String annotation = EMFUtils.getAnnotation(feature, "constraint", "anchor");
return Boolean.parseBoolean(annotation);
}
/**
* Utility method that determines if the feature is relevant to the anchor
*
* @param point
* @param planElement
* @param feature
* @return
*/
public static boolean isAnchorPointForElement(
ConstraintPoint point, EPlanElement planElement, EStructuralFeature feature) {
return !point.hasEndpoint()
&& point.getElement() == planElement
&& feature.getName().equals(point.getAnchor());
}
public static boolean areAnchorsAllowed() {
return EnsembleProperties.getBooleanPropertyValue("constraint.anchor.allowed", false);
}
public static boolean isNested(List<EPlanElement> elements) {
Set<String> hierarchy = new HashSet();
for (EPlanElement element : elements) {
while (element instanceof EPlanChild
&& (((EPlanChild) element).getParent() instanceof EPlanChild)) {
EPlanElement parent = ((EPlanChild) element).getParent();
hierarchy.add(parent.getPersistentID());
element = parent;
}
}
for (EPlanElement element : elements) {
if (hierarchy.contains(element.getPersistentID())) {
return true;
}
}
return false;
}
/**
* Returns true if all elements have the same parent
*
* @param elements
* @return
*/
public static boolean sameParent(List<? extends EPlanElement> elements) {
EObject firstParent = elements.get(0).eContainer();
for (EPlanElement element : elements) {
EObject parent = element.eContainer();
if (firstParent != parent) {
return false;
}
}
return true;
}
public static boolean sameType(List<EPlanElement> elements) {
Class clazz = null;
for (EPlanElement element : elements) {
if (clazz == null) {
clazz = element.getClass();
} else if (element.getClass() != clazz) {
return false;
}
}
return true;
}
}
/**
* Evaluate overall CG
*
* @param aircraft
*/
public void calculateTotalCG(Aircraft aircraft) {
// Structural CG
_cgStructure = new CenterOfGravity();
_cgList.add(aircraft.get_fuselage().get_cg());
_cgList.add(aircraft.get_wing().get_cg());
_cgList.add(aircraft.get_HTail().get_cg());
_cgList.add(aircraft.get_VTail().get_cg());
_cgList.add(aircraft.get_landingGear().get_cg());
_cgList.addAll(aircraft.get_theNacelles().get_cgList());
System.out.println("\n \nCG COMPONENTS LOCATION IN BRF");
System.out.println("fuselage --> " + _cgList.get(0).get_xBRF());
System.out.println("wing --> " + _cgList.get(1).get_xBRF());
System.out.println("HTail --> " + _cgList.get(2).get_xBRF());
System.out.println("VTail --> " + _cgList.get(3).get_xBRF());
System.out.println("Landing gear --> " + _cgList.get(4).get_xBRF());
for (int i = 0; i < aircraft.get_theNacelles().get_cgList().size(); i++) {
System.out.println("Nacelle " + i + " --> " + _cgList.get(i + 5).get_xBRF());
}
// _cgList.forEach(p-> System.out.println(p.get_xBRF()));
double prod = 0., sum = 0.;
for (int i = 0; i < _cgList.size(); i++) {
prod +=
_cgList.get(i).get_xBRF().getEstimatedValue()
* aircraft.get_weights().get_massStructureList().get(i).getEstimatedValue();
sum += aircraft.get_weights().get_massStructureList().get(i).getEstimatedValue();
}
_cgStructure.set_xBRF(Amount.valueOf(prod / sum, SI.METER));
_cgStructure.calculateCGinMAC(
aircraft.get_wing().get_xLEMacActualBRF(),
aircraft.get_wing().get_xLEMacActualBRF(),
Amount.valueOf(0., SI.METER),
aircraft.get_wing().get_meanAerodChordActual());
// Structure + engines CG
_cgStructureAndPower = new CenterOfGravity();
System.out.println(
"fuel tank --> " + aircraft.get_theFuelTank().get_cg().get_xBRF().getEstimatedValue());
double cgPowerPlantContribute = 0.0;
for (int i = 0; i < aircraft.get_powerPlant().get_engineNumber(); i++) {
cgPowerPlantContribute =
cgPowerPlantContribute
+ (aircraft.get_powerPlant().get_cgList().get(i).get_xBRF().getEstimatedValue()
* aircraft
.get_powerPlant()
.get_engineList()
.get(i)
.get_totalMass()
.getEstimatedValue());
System.out.println(
"Engine " + i + " --> " + aircraft.get_powerPlant().get_cgList().get(i).get_xBRF());
}
_cgStructureAndPower.set_xBRF(
Amount.valueOf(
(cgPowerPlantContribute
+ aircraft.get_weights().get_structuralMass().getEstimatedValue()
* get_cgStructure().get_xBRF().getEstimatedValue())
/ (aircraft.get_weights().get_structuralMass().getEstimatedValue()
+ aircraft.get_powerPlant().get_totalMass().getEstimatedValue()),
SI.METER));
get_cgStructureAndPower()
.calculateCGinMAC(
aircraft.get_wing().get_xLEMacActualBRF(),
aircraft.get_wing().get_xLEMacActualBRF(),
Amount.valueOf(0., SI.METER),
aircraft.get_wing().get_meanAerodChordActual());
// MZFW CG location
_cgMZFM = new CenterOfGravity();
get_cgMZFM()
.set_xBRF(
Amount.valueOf(
(get_cgStructureAndPower().get_xBRF().getEstimatedValue()
* aircraft.get_weights().get_OEM().getEstimatedValue()
+ aircraft.get_configuration().get_seatsCoG().getEstimatedValue()
* aircraft.get_weights().get_paxMassMax().getEstimatedValue())
/ (aircraft.get_weights().get_paxMassMax().getEstimatedValue()
+ aircraft.get_weights().get_OEM().getEstimatedValue()),
SI.METER));
get_cgMZFM()
.calculateCGinMAC(
aircraft.get_wing().get_xLEMacActualBRF(),
aircraft.get_wing().get_xLEMacActualBRF(),
Amount.valueOf(0., SI.METER),
aircraft.get_wing().get_meanAerodChordActual());
// MTOM CG location
_cgMTOM = new CenterOfGravity();
_cgMTOM.set_xBRF(
Amount.valueOf(
(_cgMZFM.get_xBRF().getEstimatedValue()
* aircraft.get_weights().get_MZFM().getEstimatedValue()
+ aircraft.get_theFuelTank().get_fuelMass().getEstimatedValue()
* aircraft.get_theFuelTank().get_cg().get_xBRF().getEstimatedValue())
/ aircraft.get_weights().get_MTOM().getEstimatedValue(),
SI.METER));
_cgMTOM.calculateCGinMAC(
aircraft.get_wing().get_xLEMacActualBRF(),
aircraft.get_wing().get_xLEMacActualBRF(),
Amount.valueOf(0., SI.METER),
aircraft.get_wing().get_meanAerodChordActual());
}
public class Aerodynamics extends AuxiliaryComponentCalculator {
private String _id = "";
public static int idCounter = 0;
public static int nAero = 0;
private CalculateMachCr calculateMachCr;
private CalculateCdWaveDrag calculateCdWaveDrag;
private double _mach;
private double _clCurrent, _clCurrentViscid;
/** The angle of attack of lifting surface chord root */
private Amount<Angle> _alphaRoot;
/** Zero lift angle of attack */
private Amount<Angle> _alphaZeroLift = Amount.valueOf(0, SI.RADIAN);
/** End of linear region of lift vs alpha curve */
private Amount<Angle> _alphaStar = Amount.valueOf(0, SI.RADIAN); // end-of-linearity
/** Stall angle */
private Amount<Angle> _alphaStall = Amount.valueOf(0, SI.RADIAN);
/** Current angle of attack */
private Amount<Angle> _alphaCurrent;
/** The actual angle of attack of the airfoil */
private Amount<Angle> _alphaEffective = Amount.valueOf(0, SI.RADIAN);
private Double _clAtAlpha0;
private Amount<?> _clAlpha;
private Double _clStar;
private Double _clMax;
private Double _cdMin;
private Double _clAtCdMin;
private Double _kFactorDragPolar;
private Double _mExponentPolar;
private Double _mExponentDragPolar;
private Double _machCr0;
private static Map<AirfoilEnum, Double> _kWaveDragMap = new HashMap<AirfoilEnum, Double>();
private Double _aerodynamicCenterX;
private Double _cmAC;
private Double _cmACStall;
private Double _cmAlphaAC;
private double _machCr, _cdw = 0., _machCurrent;
private Geometry geometry;
private Airfoil _theAirfoil;
private double[] clAirfoil;
MyArray alphaArray = new MyArray();
/*
* This constructor builds the airfoil aerodynamics using the AirfoilCreator class
*/
public Aerodynamics(AirfoilCreator airfoilCreator) {
_alphaZeroLift = airfoilCreator.getAlphaZeroLift();
_clAtAlpha0 = airfoilCreator.getClAtAlphaZero();
_clAlpha = airfoilCreator.getClAlphaLinearTrait();
_alphaStar = airfoilCreator.getAlphaEndLinearTrait();
_clStar = airfoilCreator.getClEndLinearTrait();
_alphaStall = airfoilCreator.getAlphaStall();
_clMax = airfoilCreator.getClMax();
_cdMin = airfoilCreator.getCdMin();
_clAtCdMin = airfoilCreator.getClAtCdMin();
_kFactorDragPolar = airfoilCreator.getKFactorDragPolar();
_aerodynamicCenterX = airfoilCreator.getXACNormalized();
_cmAC = airfoilCreator.getCmAC();
_cmACStall = airfoilCreator.getCmACAtStall();
_cmAlphaAC = airfoilCreator.getCmAlphaQuarterChord();
_mExponentPolar = airfoilCreator.getMExponentDragPolar();
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
}
public Aerodynamics(Airfoil airf, AircraftEnum aircraftName, AirfoilStationEnum station) {
switch (aircraftName) {
case ATR72:
switch (station) {
case ROOT:
initializeAerodynamics(airf, AirfoilEnum.NACA23_018);
break;
case KINK:
initializeAerodynamics(airf, AirfoilEnum.NACA23_018);
break;
case TIP:
initializeAerodynamics(airf, AirfoilEnum.NACA23_015);
break;
}
break;
case B747_100B:
// TODO implement this
switch (station) {
case ROOT:
initializeAerodynamics(airf, AirfoilEnum.NACA65_209);
break;
case KINK:
initializeAerodynamics(airf, AirfoilEnum.NACA65_209);
break;
case TIP:
initializeAerodynamics(airf, AirfoilEnum.NACA65_206);
break;
}
break;
case AGILE_DC1:
switch (station) {
case ROOT:
initializeAerodynamics(airf, AirfoilEnum.DFVLR_R4);
// TODO: It should be Ha5 airfoil
break;
case KINK:
initializeAerodynamics(airf, AirfoilEnum.DFVLR_R4);
break;
case TIP:
initializeAerodynamics(airf, AirfoilEnum.DFVLR_R4);
break;
}
}
}
public Aerodynamics(Airfoil airfoil, AirfoilEnum airfoilName) {
initializeAerodynamics(airfoil, airfoilName);
}
private void initializeAerodynamics(Airfoil airf, AirfoilEnum airfoilName) {
switch (airfoilName) {
case NACA23_018:
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
airf.setName(AirfoilEnum.NACA23_018);
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.2), SI.RADIAN);
_clAlpha = Amount.valueOf(6.3, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(9.5), SI.RADIAN); // end-of-linearity
_clStar = 1.3;
_alphaStall = Amount.valueOf(Math.toRadians(16.0), SI.RADIAN);
_clMax = 1.65; // 1.8;
_cdMin = 0.00675;
_clAtCdMin = 0.3;
_kFactorDragPolar = 0.004;
_aerodynamicCenterX = 0.243;
_cmAC = -0.02;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA23_015:
airf.setName(AirfoilEnum.NACA23_015);
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.1), SI.RADIAN);
_clAlpha = Amount.valueOf(6.3, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(10), SI.RADIAN); // end-of-linearity
_clStar = 1.2;
_alphaStall = Amount.valueOf(Math.toRadians(18.0), SI.RADIAN);
_clMax = 1.7; // 1.6;
_cdMin = 0.00625;
_clAtCdMin = 0.1;
_kFactorDragPolar = 0.004;
_aerodynamicCenterX = 0.243;
_cmAC = -0.02;
_cmACStall = -0.07;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA23_012:
airf.setName(AirfoilEnum.NACA23_012);
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.32), SI.RADIAN);
_clAlpha = Amount.valueOf(6.3, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(14), SI.RADIAN); // end-of-linearity
_clStar = 1.6;
_alphaStall = Amount.valueOf(Math.toRadians(18), SI.RADIAN);
_clMax = 1.8; // 1.5;
_cdMin = 0.00575;
_clAtCdMin = 0.23;
_kFactorDragPolar = 0.004;
_aerodynamicCenterX = 0.247;
_cmAC = -0.03;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA65_209:
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.3), SI.RADIAN);
_clAlpha = Amount.valueOf(5.96, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(11), SI.RADIAN); // end-of-linearity
_clStar = 1.1;
_alphaStall = Amount.valueOf(Math.toRadians(17.0), SI.RADIAN);
_clMax = 1.6;
_cdMin = 0.025;
_clAtCdMin = 0.2;
_kFactorDragPolar = 0.0035;
_aerodynamicCenterX = 0.25;
_cmAC = -0.07;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA65_206:
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.4), SI.RADIAN);
_clAlpha = Amount.valueOf(6.13, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(10.0), SI.RADIAN); // end-of-linearity
_clStar = _clAlpha.getEstimatedValue() * _alphaStar.getEstimatedValue();
_alphaStall = Amount.valueOf(Math.toRadians(15.0), SI.RADIAN);
_clMax = 1.3;
_cdMin = 0.025;
_clAtCdMin = 0.2;
_kFactorDragPolar = 0.0035;
_aerodynamicCenterX = 0.25;
_cmAC = -0.07;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA0012:
airf.setName(AirfoilEnum.NACA0012);
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(0), SI.RADIAN);
_clAlpha = Amount.valueOf(6.92, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(11), SI.RADIAN); // end-of-linearity
_clStar = 1.23;
_alphaStall = Amount.valueOf(Math.toRadians(20.1), SI.RADIAN);
_clMax = 1.86; // 1.5;
_cdMin = 0.0055;
_clAtCdMin = 0.0;
_kFactorDragPolar = 0.0035;
_aerodynamicCenterX = 0.25;
_cmAC = 0.0;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case DFVLR_R4:
airf.setName(AirfoilEnum.DFVLR_R4);
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-3.75), SI.RADIAN);
_clAlpha = Amount.valueOf(6.3, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(11), SI.RADIAN); // end-of-linearity
_clStar = 1.53;
_alphaStall = Amount.valueOf(Math.toRadians(16.75), SI.RADIAN);
_clMax = 1.7671; // 1.5;
_cdMin = 0.0056;
_clAtCdMin = 0.0;
_kFactorDragPolar = 0.075;
_aerodynamicCenterX = 0.25;
_cmAC = -0.1168;
_cmACStall = -0.0515;
_cmAlphaAC = 0.0015;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
default:
break;
}
}
public double calculateClAtAlphaLinear(Double alpha) {
_clCurrent = alpha / _clAlpha.getEstimatedValue();
return _clCurrent;
}
/**
* This function calculates Cl at alpha of an airfoil. It calculates both in the linear trait and
* non linear using a cubic interpolation
*
* @author Manuela Ruocco
* @param double alpha: angle of attack in radians
*/
public double calculateClAtAlpha(double alpha) {
// double clActual= MyMathUtils.getInterpolatedValue1DLinear(alphaArray.toArray(), clAirfoil,
// alpha);
// return clActual;
double q = _clStar - _clAlpha.getEstimatedValue() * _alphaStar.getEstimatedValue();
if (alpha < _alphaStar.getEstimatedValue()) {
_clCurrentViscid = _clAlpha.getEstimatedValue() * alpha + q;
} else {
double[][] matrixData = {
{
Math.pow(_alphaStall.getEstimatedValue(), 3),
Math.pow(_alphaStall.getEstimatedValue(), 2),
_alphaStall.getEstimatedValue(),
1.0
},
{
3 * Math.pow(_alphaStall.getEstimatedValue(), 2),
2 * _alphaStall.getEstimatedValue(),
1.0,
0.0
},
{
3 * Math.pow(_alphaStar.getEstimatedValue(), 2),
2 * _alphaStar.getEstimatedValue(),
1.0,
0.0
},
{
Math.pow(_alphaStar.getEstimatedValue(), 3),
Math.pow(_alphaStar.getEstimatedValue(), 2),
_alphaStar.getEstimatedValue(),
1.0
}
};
RealMatrix m = MatrixUtils.createRealMatrix(matrixData);
double[] vector = {_clMax, 0, _clAlpha.getEstimatedValue(), _clStar};
double[] solSystem = MyMathUtils.solveLinearSystem(m, vector);
double a = solSystem[0];
double b = solSystem[1];
double c = solSystem[2];
double d = solSystem[3];
_clCurrentViscid = a * Math.pow(alpha, 3) + b * Math.pow(alpha, 2) + c * alpha + d;
}
return _clCurrentViscid;
}
public double calculateClAtAlphaInterp(double alpha) {
double clActual =
MyMathUtils.getInterpolatedValue1DLinear(alphaArray.toArray(), clAirfoil, alpha);
return clActual;
}
public void calculateClvsAlpha() {
int nValue = 50;
double alphaMin = Math.toRadians(-5);
double alphaMax = Math.toRadians(25);
alphaArray.linspace(alphaMin, alphaMax, nValue);
double alpha;
double q = _clStar - _clAlpha.getEstimatedValue() * _alphaStar.getEstimatedValue();
clAirfoil = new double[nValue];
for (int i = 0; i < nValue; i++) {
alpha = alphaArray.get(i);
if (alpha < _alphaStar.getEstimatedValue()) {
clAirfoil[i] = _clAlpha.getEstimatedValue() * alpha + q;
} else {
double[][] matrixData = {
{
Math.pow(_alphaStall.getEstimatedValue(), 3),
Math.pow(_alphaStall.getEstimatedValue(), 2),
_alphaStall.getEstimatedValue(),
1.0
},
{
3 * Math.pow(_alphaStall.getEstimatedValue(), 2),
2 * _alphaStall.getEstimatedValue(),
1.0,
0.0
},
{
3 * Math.pow(_alphaStar.getEstimatedValue(), 2),
2 * _alphaStar.getEstimatedValue(),
1.0,
0.0
},
{
Math.pow(_alphaStar.getEstimatedValue(), 3),
Math.pow(_alphaStar.getEstimatedValue(), 2),
_alphaStar.getEstimatedValue(),
1.0
}
};
RealMatrix m = MatrixUtils.createRealMatrix(matrixData);
double[] vector = {_clMax, 0, _clAlpha.getEstimatedValue(), _clStar};
double[] solSystem = MyMathUtils.solveLinearSystem(m, vector);
double a = solSystem[0];
double b = solSystem[1];
double c = solSystem[2];
double d = solSystem[3];
clAirfoil[i] = a * Math.pow(alpha, 3) + b * Math.pow(alpha, 2) + c * alpha + d;
}
}
}
public void plotClvsAlpha(String subfolderPath, String name) {
System.out.println("\n \n-----------------------------------------------------");
System.out.println("STARTING PLOT AIRFOIL CL vs ALPHA CURVE " + name);
System.out.println("-----------------------------------------------------");
MyArray alphaArray = new MyArray();
int _numberOfAlpha = 60;
double[] clArray = new double[_numberOfAlpha];
double[] alphaArrayDeg = new double[_numberOfAlpha];
Amount<Angle> alphaActualAmount;
Amount<Angle> alphaStart = Amount.valueOf(toRadians(-6.), SI.RADIAN);
Amount<Angle> alphaEnd = Amount.valueOf(toRadians(25.0), SI.RADIAN);
alphaArray.setDouble(
MyArrayUtils.linspace(
alphaStart.getEstimatedValue(), alphaEnd.getEstimatedValue(), _numberOfAlpha));
for (int i = 0; i < _numberOfAlpha; i++) {
alphaActualAmount = Amount.valueOf(alphaArray.get(i), SI.RADIAN);
clArray[i] = calculateClAtAlpha(alphaActualAmount.getEstimatedValue());
alphaArrayDeg[i] = alphaActualAmount.to(NonSI.DEGREE_ANGLE).getEstimatedValue();
}
MyChartToFileUtils.plotNoLegend(
alphaArrayDeg,
clArray,
null,
null,
null,
null,
"alpha",
"CL",
"deg",
"",
subfolderPath,
"CL vs alpha Airfoil" + name);
System.out.println("-----------------------------------------------------");
System.out.println("\n DONE");
System.out.println("-----------------------------------------------------");
}
/** Evaluate Cl at effective AoA (i.e., taking into account airfoil twist) */
public void calculateClAtAlphaEffective() {
calculateClAtAlphaLinear(calculateAlphaEffective());
}
/** Evaluate effective AoA (i.e., taking into account airfoil twist) */
public double calculateAlphaEffective() {
_alphaEffective =
Amount.valueOf(
geometry.get_twist().getEstimatedValue() + _alphaRoot.getEstimatedValue(), SI.RADIAN);
return _alphaEffective.getEstimatedValue();
}
/**
* Evaluate Cd using a parabolic polar curve
*
* @author Manuela Ruocco
*/
public double calculateCdAtAlpha(Amount<Angle> alpha) {
double cdAirfoil;
double clAirfoil = calculateClAtAlpha(alpha.getEstimatedValue());
cdAirfoil = get_cdMin() + Math.pow((clAirfoil - get_clAtCdMin()), 2) * get_kFactorDragPolar();
return cdAirfoil;
}
public double calculateCdAtClLinear(double cl) {
double qValue = _clStar - _clAlpha.getEstimatedValue() * _alphaStar.getEstimatedValue();
Amount<Angle> alpha;
double alphaTemp;
alphaTemp = (cl - qValue) / _clAlpha.getEstimatedValue();
alpha = Amount.valueOf(alphaTemp, SI.RADIAN);
double cdAirfoil = calculateCdAtAlpha(alpha);
return cdAirfoil;
}
/**
* Evaluate Cd using a parabolic polar curve
*
* @author Manuela Ruocco
*/
public static double calculateCd(
double clAirfoil, Double cdMin, Double clAtCdMin, double kFactorDragPolar) {
double cdAirfoil;
cdAirfoil = cdMin + Math.pow((clAirfoil - clAtCdMin), 2) * kFactorDragPolar;
return cdAirfoil;
}
/**
* This function plots the airfoil drag polar using a parabolic approssimation.
*
* @author Manuela Ruocco
*/
public void plotPolar() {
System.out.println("\n \n-----------------------------------------------------");
System.out.println("STARTING PLOT AIRFOIL DRAG POLAR");
System.out.println("-----------------------------------------------------");
MyArray alphaArray = new MyArray();
int _numberOfAlpha = 40;
double[] cdArrayPolar = new double[_numberOfAlpha];
double[] clArrayPolar = new double[_numberOfAlpha];
Amount<Angle> alphaActualAmount;
Amount<Angle> alphaStart = Amount.valueOf(toRadians(-6.), SI.RADIAN);
Amount<Angle> alphaEnd = Amount.valueOf(toRadians(12.), SI.RADIAN);
alphaArray.setDouble(
MyArrayUtils.linspace(
alphaStart.getEstimatedValue(), alphaEnd.getEstimatedValue(), _numberOfAlpha));
String folderPathPolar =
MyConfiguration.currentDirectoryString + File.separator + "out" + File.separator;
String subfolderPathPolar =
JPADStaticWriteUtils.createNewFolder(folderPathPolar + "Polar_Airfoil" + File.separator);
for (int i = 0; i < _numberOfAlpha; i++) {
alphaActualAmount = Amount.valueOf(alphaArray.get(i), SI.RADIAN);
clArrayPolar[i] = calculateClAtAlpha(alphaActualAmount.getEstimatedValue());
cdArrayPolar[i] = calculateCdAtAlpha(alphaActualAmount);
}
MyChartToFileUtils.plotNoLegend(
cdArrayPolar,
clArrayPolar,
null,
null,
null,
null,
"Cd",
"Cl",
"",
"",
subfolderPathPolar,
"Polar_Airfoil ");
System.out.println("\n \n-----------------------------------------------------");
System.out.println("DONE");
System.out.println("-----------------------------------------------------");
}
public class CalculateMachCr {
private double mCr0PerkinsAndHage() {
// Page 407 Sforza
_machCr0 = 0.89 - 1.3 * (geometry.get_maximumThicknessOverChord());
return _machCr0;
}
private double mCr0Shevell() {
// Page 409 Sforza
_machCr0 = 0.9 - geometry.get_maximumThicknessOverChord();
return _machCr0;
}
public double perkinsAndHage() {
if (_kWaveDragMap.containsKey(_theAirfoil.getFamily())) {
_machCr = mCr0PerkinsAndHage() - _kWaveDragMap.get(_theAirfoil.getFamily()) * _clCurrent;
} else _machCr = 0.;
return _machCr;
}
public double shevell() {
_machCr = mCr0Shevell() - (0.17 + 0.016) * _clCurrent;
return _machCr;
}
public double korn() {
double k;
if (_theAirfoil.getType().equals(AirfoilTypeEnum.CONVENTIONAL)) k = 0.87;
else k = 0.95;
_machCr = (k - 0.108) - geometry.get_maximumThicknessOverChord() - 0.1 * _clCurrent;
return _machCr;
}
public void allMethods() {
perkinsAndHage();
shevell();
korn();
}
}
public class CalculateCdWaveDrag {
public double perkinsAndHage() {
// Difference between current mach number and critical mach number
double diff = _machCurrent - calculateMachCr.perkinsAndHage();
if (diff > 0) _cdw = 9.5 * Math.pow((diff), 2.8) + 0.00193;
return _cdw;
}
/** Page 410 Sforza */
public double lockShevell() {
double diff = _machCurrent - calculateMachCr.shevell();
if (diff > 0) _cdw = 20 * Math.pow((diff), 4);
return _cdw;
}
public double lockKorn() {
double diff = _machCurrent - calculateMachCr.korn();
if (diff > 0) _cdw = 20 * Math.pow((diff), 4);
return _cdw;
}
public void allMethods() {
perkinsAndHage();
lockShevell();
lockKorn();
}
}
public CalculateMachCr getCalculateMachCr() {
return calculateMachCr;
}
public CalculateCdWaveDrag getCalculateCdWaveDrag() {
return calculateCdWaveDrag;
}
public double get_mach() {
return _mach;
}
public void set_mach(double _mach) {
this._mach = _mach;
}
public double get_clCurrent() {
return _clCurrent;
}
public void set_clCurrent(double _clCurrent) {
this._clCurrent = _clCurrent;
}
public Amount<Angle> get_alphaRoot() {
return _alphaRoot;
}
public void set_alphaRoot(Amount<Angle> _alphaRoot) {
this._alphaRoot = _alphaRoot;
}
public Amount<Angle> get_alphaZeroLift() {
return _alphaZeroLift;
}
public void set_alphaZeroLift(Amount<Angle> _alphaZeroLift) {
this._alphaZeroLift = _alphaZeroLift;
}
public Amount<Angle> get_alphaStar() {
return _alphaStar;
}
public void set_alphaStar(Amount<Angle> _alphaStar) {
this._alphaStar = _alphaStar;
}
public Amount<Angle> get_alphaStall() {
return _alphaStall;
}
public void set_alphaStall(Amount<Angle> _alphaStall) {
this._alphaStall = _alphaStall;
}
public Amount<Angle> get_alphaCurrent() {
return _alphaCurrent;
}
public void set_alphaCurrent(Amount<Angle> _alphaCurrent) {
this._alphaCurrent = _alphaCurrent;
}
public Amount<Angle> get_alphaEffective() {
return _alphaEffective;
}
public void set_alphaEffective(Amount<Angle> _alphaEffective) {
this._alphaEffective = _alphaEffective;
}
public Double get_clAtAlpha0() {
return _clAtAlpha0;
}
public void set_clAtAlpha0(Double _clAtAlpha0) {
this._clAtAlpha0 = _clAtAlpha0;
}
public Amount<?> getClAlpha() {
return _clAlpha;
}
public void set_clAlpha(Amount<?> _clAlpha) {
this._clAlpha = _clAlpha;
}
public Double get_clStar() {
return _clStar;
}
public void set_clStar(Double _clStar) {
this._clStar = _clStar;
}
public Double get_clMax() {
return _clMax;
}
public void set_clMax(Double _clMax) {
this._clMax = _clMax;
}
public Double get_cdMin() {
return _cdMin;
}
public void set_cdMin(Double _cdMin) {
this._cdMin = _cdMin;
}
public Double get_clAtCdMin() {
return _clAtCdMin;
}
public void set_clAtCdMin(Double _clAtCdMin) {
this._clAtCdMin = _clAtCdMin;
}
public Double get_kFactorDragPolar() {
return _kFactorDragPolar;
}
public void set_kFactorDragPolar(Double _kFactorDragPolar) {
this._kFactorDragPolar = _kFactorDragPolar;
}
public Double get_mExponentDragPolar() {
return _mExponentDragPolar;
}
public void set_mExponentDragPolar(Double _mExponentDragPolar) {
this._mExponentDragPolar = _mExponentDragPolar;
}
public Double get_machCr0() {
return _machCr0;
}
public void set_machCr0(Double _machCr0) {
this._machCr0 = _machCr0;
}
public Double get_aerodynamicCenterX() {
return _aerodynamicCenterX;
}
public void set_aerodynamicCenterX(Double _aerodynamicCenterX) {
this._aerodynamicCenterX = _aerodynamicCenterX;
}
public Double get_cmAC() {
return _cmAC;
}
public void set_cmAC(Double _cmAC) {
this._cmAC = _cmAC;
}
public Double get_cmACStall() {
return _cmACStall;
}
public void set_cmACStall(Double _cmACStall) {
this._cmACStall = _cmACStall;
}
public Double get_cmAlphaAC() {
return _cmAlphaAC;
}
public void set_cmAlphaAC(Double _cmAlphaAC) {
this._cmAlphaAC = _cmAlphaAC;
}
public double get_machCr() {
return _machCr;
}
public void set_machCr(double _machCr) {
this._machCr = _machCr;
}
public double get_cdw() {
return _cdw;
}
public void set_cdw(double _cdw) {
this._cdw = _cdw;
}
public double get_machCurrent() {
return _machCurrent;
}
public void set_machCurrent(double _machCurrent) {
this._machCurrent = _machCurrent;
}
public static Map<AirfoilEnum, Double> get_kWaveDragMap() {
return _kWaveDragMap;
}
@Override
public String getId() {
return _id;
}
public String getIdNew() {
String id = _theAirfoil.getId() + "aero" + nAero;
nAero++;
return id;
}
public double[] getClAirfoil() {
return clAirfoil;
}
public void setClAirfoil(double[] clAirfoil) {
this.clAirfoil = clAirfoil;
}
public MyArray getAlphaArray() {
return alphaArray;
}
public void setAlphaArray(MyArray alphaArray) {
this.alphaArray = alphaArray;
}
public Double get_mExponentPolar() {
return _mExponentPolar;
}
public void set_mExponentPolar(Double _mExponentPolar) {
this._mExponentPolar = _mExponentPolar;
}
}
private void initializeAerodynamics(Airfoil airf, AirfoilEnum airfoilName) {
switch (airfoilName) {
case NACA23_018:
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
airf.setName(AirfoilEnum.NACA23_018);
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.2), SI.RADIAN);
_clAlpha = Amount.valueOf(6.3, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(9.5), SI.RADIAN); // end-of-linearity
_clStar = 1.3;
_alphaStall = Amount.valueOf(Math.toRadians(16.0), SI.RADIAN);
_clMax = 1.65; // 1.8;
_cdMin = 0.00675;
_clAtCdMin = 0.3;
_kFactorDragPolar = 0.004;
_aerodynamicCenterX = 0.243;
_cmAC = -0.02;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA23_015:
airf.setName(AirfoilEnum.NACA23_015);
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.1), SI.RADIAN);
_clAlpha = Amount.valueOf(6.3, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(10), SI.RADIAN); // end-of-linearity
_clStar = 1.2;
_alphaStall = Amount.valueOf(Math.toRadians(18.0), SI.RADIAN);
_clMax = 1.7; // 1.6;
_cdMin = 0.00625;
_clAtCdMin = 0.1;
_kFactorDragPolar = 0.004;
_aerodynamicCenterX = 0.243;
_cmAC = -0.02;
_cmACStall = -0.07;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA23_012:
airf.setName(AirfoilEnum.NACA23_012);
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.32), SI.RADIAN);
_clAlpha = Amount.valueOf(6.3, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(14), SI.RADIAN); // end-of-linearity
_clStar = 1.6;
_alphaStall = Amount.valueOf(Math.toRadians(18), SI.RADIAN);
_clMax = 1.8; // 1.5;
_cdMin = 0.00575;
_clAtCdMin = 0.23;
_kFactorDragPolar = 0.004;
_aerodynamicCenterX = 0.247;
_cmAC = -0.03;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA65_209:
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.3), SI.RADIAN);
_clAlpha = Amount.valueOf(5.96, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(11), SI.RADIAN); // end-of-linearity
_clStar = 1.1;
_alphaStall = Amount.valueOf(Math.toRadians(17.0), SI.RADIAN);
_clMax = 1.6;
_cdMin = 0.025;
_clAtCdMin = 0.2;
_kFactorDragPolar = 0.0035;
_aerodynamicCenterX = 0.25;
_cmAC = -0.07;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA65_206:
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-1.4), SI.RADIAN);
_clAlpha = Amount.valueOf(6.13, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(10.0), SI.RADIAN); // end-of-linearity
_clStar = _clAlpha.getEstimatedValue() * _alphaStar.getEstimatedValue();
_alphaStall = Amount.valueOf(Math.toRadians(15.0), SI.RADIAN);
_clMax = 1.3;
_cdMin = 0.025;
_clAtCdMin = 0.2;
_kFactorDragPolar = 0.0035;
_aerodynamicCenterX = 0.25;
_cmAC = -0.07;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case NACA0012:
airf.setName(AirfoilEnum.NACA0012);
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(0), SI.RADIAN);
_clAlpha = Amount.valueOf(6.92, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(11), SI.RADIAN); // end-of-linearity
_clStar = 1.23;
_alphaStall = Amount.valueOf(Math.toRadians(20.1), SI.RADIAN);
_clMax = 1.86; // 1.5;
_cdMin = 0.0055;
_clAtCdMin = 0.0;
_kFactorDragPolar = 0.0035;
_aerodynamicCenterX = 0.25;
_cmAC = 0.0;
_cmACStall = -0.09;
_cmAlphaAC = 0.;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
case DFVLR_R4:
airf.setName(AirfoilEnum.DFVLR_R4);
_id = airf.getId() + "1" + idCounter + "99";
idCounter++;
_theAirfoil = airf;
geometry = airf.getGeometry();
_alphaZeroLift = Amount.valueOf(Math.toRadians(-3.75), SI.RADIAN);
_clAlpha = Amount.valueOf(6.3, SI.RADIAN.inverse());
_alphaStar = Amount.valueOf(Math.toRadians(11), SI.RADIAN); // end-of-linearity
_clStar = 1.53;
_alphaStall = Amount.valueOf(Math.toRadians(16.75), SI.RADIAN);
_clMax = 1.7671; // 1.5;
_cdMin = 0.0056;
_clAtCdMin = 0.0;
_kFactorDragPolar = 0.075;
_aerodynamicCenterX = 0.25;
_cmAC = -0.1168;
_cmACStall = -0.0515;
_cmAlphaAC = 0.0015;
calculateMachCr = new CalculateMachCr();
calculateCdWaveDrag = new CalculateCdWaveDrag();
break;
default:
break;
}
}
public class Finocyl extends ExtrudedShapeGrain implements Validating {
private Amount<Length> oD = Amount.valueOf(30, SI.MILLIMETER);
private Amount<Length> iD = Amount.valueOf(10, SI.MILLIMETER);
private Amount<Length> finWidth = Amount.valueOf(2, SI.MILLIMETER);
private Amount<Length> finDiameter = Amount.valueOf(20, SI.MILLIMETER);
private int finCount = 5;
public Finocyl() {
try {
setLength(Amount.valueOf(70, SI.MILLIMETER));
} catch (PropertyVetoException e) {
e.printStackTrace();
}
generateGeometry();
}
private void generateGeometry() {
double odmm = oD.doubleValue(SI.MILLIMETER);
double idmm = iD.doubleValue(SI.MILLIMETER);
double fwmm = finWidth.doubleValue(SI.MILLIMETER);
double fdmm = finDiameter.doubleValue(SI.MILLIMETER);
xsection = new BurningShape();
Shape outside = new Ellipse2D.Double(-odmm / 2, -odmm / 2, odmm, odmm);
xsection.add(outside);
xsection.inhibit(outside);
xsection.subtract(new Ellipse2D.Double(-idmm / 2, -idmm / 2, idmm, idmm));
webThickness = null;
for (int i = 0; i < finCount; i++) {
Shape fin = new Rectangle2D.Double(-fwmm / 2, 0, fwmm, fdmm / 2);
xsection.subtract(fin, AffineTransform.getRotateInstance(i * (2.0 * Math.PI / finCount)));
}
}
public Amount<Length> getOD() {
return oD;
}
public void setOD(Amount<Length> od) throws PropertyVetoException {
if (od.equals(this.oD)) return;
this.oD = od;
generateGeometry();
}
public Amount<Length> getID() {
return iD;
}
public void setID(Amount<Length> id) throws PropertyVetoException {
if (id.equals(this.iD)) return;
iD = id;
generateGeometry();
}
public Amount<Length> getFinWidth() {
return finWidth;
}
public void setFinWidth(Amount<Length> finWidth) throws PropertyVetoException {
if (finWidth.equals(this.finWidth)) return;
this.finWidth = finWidth;
generateGeometry();
}
public Amount<Length> getFinDiameter() {
return finDiameter;
}
public void setFinDiameter(Amount<Length> finDiameter) throws PropertyVetoException {
if (finDiameter.equals(this.finDiameter)) return;
this.finDiameter = finDiameter;
generateGeometry();
}
public int getFinCount() {
return finCount;
}
public void setFinCount(int finCount) throws PropertyVetoException {
if (finCount == this.finCount) return;
this.finCount = finCount;
generateGeometry();
}
@Override
public void validate() throws ValidationException {
if (iD.equals(Amount.ZERO)) throw new ValidationException(this, "Invalid iD");
if (oD.equals(Amount.ZERO)) throw new ValidationException(this, "Invalid oD");
if (getLength().equals(Amount.ZERO)) throw new ValidationException(this, "Invalid Length");
if (iD.isGreaterThan(oD)) throw new ValidationException(this, "iD > oD");
}
}