function
Class WaveDragAxisymmetric.Panair

java.lang.Object
  function.BasicScalarFunction
      function.WaveDragAxisymmetric.Panair

All Implemented Interfaces:

Computable, ScalarFunction, VariableBounds

Direct Known Subclasses:

WaveDragAxisymmetric.PanairShevell

Enclosing class:

WaveDragAxisymmetric

public static class WaveDragAxisymmetric.Panair
extends BasicScalarFunction
implements VariableBounds

Runs PANAIR to compute the wave drag of these axisymmetric bodies.

Author:

dgorur

Field Summary

protected java.lang.String	filenamePrefix
protected static int	INSTANCE_COUNT
protected static PanairRunnerShevell	panairRunner

Fields inherited from class function.BasicScalarFunction

DEFAULT_BOUNDS, DEFAULT_DIM, VALUE_OUTSIDE_BOUNDS

Constructor Summary

WaveDragAxisymmetric.Panair()

Method Summary

Hypercube	getBounds() Returns a Hypercube specifying the domain of this Computable.
WaveDragAxisymmetric	getParent() Returns the parent container.
void	init() Initialization method.
static void	main(java.lang.String[] args) Tests the Sears-Haack and quadratic bodies.
double	quickCompute(double[] x) Compute method without dimension checking.
static double	readPanairOutput(java.lang.String filename) Processes PANAIR output in output file of the given file name.
protected java.lang.String	renameInputFile(java.lang.Integer index) Renames the input file.
void	setBounds(Hypercube bounds) Sets the bounds for this ScalarFunction.
void	setParent(WaveDragAxisymmetric parent) Sets the parent.
protected int	writePanairInput(double[] r, int n, double[] x, double L, double M) Write PANAIR input file by calling C and then Fortran

Methods inherited from class function.BasicScalarFunction

checkDimensions, compute, compute, compute, compute, compute, compute, getInputDimension, getOutputDimension, isWithinBounds, makeBounds, quickCompute

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE_COUNT

protected static int INSTANCE_COUNT

panairRunner

protected static PanairRunnerShevell panairRunner

filenamePrefix

protected java.lang.String filenamePrefix

Constructor Detail

WaveDragAxisymmetric.Panair

public WaveDragAxisymmetric.Panair()

Method Detail

main

public static void main(java.lang.String[] args)

Tests the Sears-Haack and quadratic bodies.

Parameters:

args - Mach number, body length, and nominal radius.

readPanairOutput

public static double readPanairOutput(java.lang.String filename)

Processes PANAIR output in output file of the given file name. If the computation failed, or a negative drag value was computed, if an IO exception found, or if the specified file was not found, the method assigns VALUE_OUTSIDE_BOUNDS.

Parameters:

filename - the given file name.

Returns:

the computed drag value.

getBounds

public Hypercube getBounds()

Description copied from interface: Computable

Returns a Hypercube specifying the domain of this Computable.

Specified by:

getBounds in interface Computable

Overrides:

getBounds in class BasicScalarFunction

Returns:

the domain of this ScalarFunction.

getParent

public WaveDragAxisymmetric getParent()

Returns the parent container.

Returns:

the parent.

init

public void init()

Description copied from class: BasicScalarFunction

Initialization method.

Specified by:

init in interface ScalarFunction

Overrides:

init in class BasicScalarFunction

quickCompute

public double quickCompute(double[] x)

Description copied from class: BasicScalarFunction

Compute method without dimension checking. All subclasses must implement this method: it is the core method that defines the function.

Specified by:

quickCompute in interface ScalarFunction

Specified by:

quickCompute in class BasicScalarFunction

Parameters:

x - the given input.

Returns:

the output corresponding to the given input.

setBounds

public void setBounds(Hypercube bounds)

Description copied from interface: VariableBounds

Sets the bounds for this ScalarFunction.

Specified by:

setBounds in interface VariableBounds

Parameters:

bounds - the given bounds.

setParent

public void setParent(WaveDragAxisymmetric parent)

Sets the parent.

Parameters:

parent - the given parent.

renameInputFile

protected java.lang.String renameInputFile(java.lang.Integer index)

Renames the input file. This sometimes facilitates analyzing multiple configurations. Adds a numeric suffix to the main filename.

Parameters:

index - the numeric suffix to add.

Returns:

the modified file name.

writePanairInput

protected int writePanairInput(double[] r,
                               int n,
                               double[] x,
                               double L,
                               double M)

Write PANAIR input file by calling C and then Fortran

Parameters:

r - radii

n - number of radii specified

x - x-locations (note: first and last points not included in r)

L - body length

M - Mach number

Returns:

-1 if superinclined flag was set.