PistonMotion Class Reference

#include <PistonMotion.h>

Public Types
enum	PistonOptionsEnum { specifiedPistonMotion =0, pressureDrivenPistonMotion, pressureAndBodyForcedPistonMotion }

Public Member Functions
	PistonMotion ()
	~PistonMotion ()
	PistonMotion (const PistonMotion &x)
	copy constructor
real	getPosition (const real t) const
	Return the piston position.
real	getVelocity (const real t) const
	Return the piston velocity.
int	getFlow (const real t, const real x, real &rhoTrue, real &uTrue, real &pTrue) const
	Compute the fluid solution at a point (t,x)
int	getPiston (const real t, real &g, real &gt) const
	Get the piston position and velocity.
int	update (GenericGraphicsInterface &gi)
	Define the piston motion parameters.

Protected Member Functions
int	computePistonMotion ()
	Solve the ODEs for the piston position and velocity and save as a Nurbs.
int	dirkImplicitSolve (const real dt, const real aii, const real tc, const RealArray &yv, const RealArray &yv0, RealArray &kv)
	: Solve the implicit DIRK equation for kv. This is a protected routine.
void	setGlobalConstants () const
int	timeStep (RealArray &yNew, RealArray &y, real t, real dt)
	Solve the ODEs for the piston position and velocity.

Protected Attributes
PistonOptionsEnum	pistonOption
real	mass
real	rho0
real	u0
real	p0
real	gamma
real	a0
real	bf [4]
real	area
real	rtol
real	newtonTol
int	orderOfAccuracy
int	debug
real	dt0
real	cfl
real	tFinal
real	ag
real	pg
NurbsMapping *	nurbs

Member Enumeration Documentation

enum PistonMotion::PistonOptionsEnum

Enumerator
specifiedPistonMotion
pressureDrivenPistonMotion
pressureAndBodyForcedPistonMotion

Constructor & Destructor Documentation

PistonMotion::PistonMotion

(

)

References a0, ag, area, bf, cfl, debug, dt0, gamma, mass, newtonTol, nurbs, orderOfAccuracy, p0, pg, pistonOption, pressureDrivenPistonMotion, rho0, rtol, setGlobalConstants(), tFinal, and u0.

PistonMotion::~PistonMotion

(

)

References nurbs.

PistonMotion::PistonMotion

(

const PistonMotion &

x

)

copy constructor

References a0, ag, area, assert(), bf, cfl, debug, dt0, gamma, j, mass, newtonTol, nurbs, orderOfAccuracy, p0, pg, pistonOption, rho0, rtol, setGlobalConstants(), tFinal, and u0.

Member Function Documentation

int PistonMotion::computePistonMotion ( )

protected

Solve the ODEs for the piston position and velocity and save as a Nurbs.

References assert(), cfl, dt0, i, nurbs, orderOfAccuracy, pistonOption, pressureAndBodyForcedPistonMotion, printF(), R, rtol, ta, tFinal, and timeStep().

Referenced by update().

int PistonMotion::dirkImplicitSolve ( const real  dt, const real  aii, const real  tc, const RealArray &  yv, const RealArray &  yv0, RealArray &  kv  )

protected

: Solve the implicit DIRK equation for kv. This is a protected routine.

This code is based on the matlab code in ??

References a0, area, bf, debug, gamma, k, mass, newtonTol, orderOfAccuracy, p0, and printF().

Referenced by timeStep().

int PistonMotion::getFlow	(	const real	t,
		const real	x,
		real &	rhoTrue,
		real &	uTrue,
		real &	pTrue
	)		const

Compute the fluid solution at a point (t,x)

References a, a0, ag, dfmin, gamma, getPiston(), gm1, gp1, gt, GT_FORCED_PISTON, p0, pg, pistonOption, pressureDrivenPistonMotion, rho0, setGlobalConstants(), specifiedPistonMotion, and tol.

Referenced by FlowSolutions::getFlowSolution(), and update().

int PistonMotion::getPiston	(	const real	t,
		real &	g,
		real &	gt
	)		const

Get the piston position and velocity.

References ag, G_FORCED_PISTON, GT_FORCED_PISTON, nurbs, OV_ABORT(), pg, pistonOption, pressureDrivenPistonMotion, printF(), ra, specifiedPistonMotion, and tFinal.

Referenced by getFlow(), and update().

real PistonMotion::getPosition

(

const real

t

)

const

Return the piston position.

References ag, G_FORCED_PISTON, nurbs, OV_ABORT(), pg, pistonOption, pressureDrivenPistonMotion, printF(), ra, specifiedPistonMotion, and tFinal.

real PistonMotion::getVelocity

(

const real

t

)

const

Return the piston velocity.

References ag, gt, GT_FORCED_PISTON, nurbs, OV_ABORT(), pg, pistonOption, pressureDrivenPistonMotion, printF(), ra, specifiedPistonMotion, and tFinal.

void PistonMotion::setGlobalConstants ( ) const

protected

References a0, area, gamma, mass, and p0.

Referenced by getFlow(), PistonMotion(), and update().

int PistonMotion::timeStep ( RealArray &  yNew, RealArray &  y, real  t, real  dt  )

protected

Solve the ODEs for the piston position and velocity.

References a11, c1, c2, ci, dirkImplicitSolve(), orderOfAccuracy, OV_ABORT(), and R.

Referenced by computePistonMotion().

int PistonMotion::update

(

GenericGraphicsInterface &

gi

)

Define the piston motion parameters.

References a0, ag, area, assert(), bf, computePistonMotion(), debug, dta, dx, gamma, getFlow(), getPiston(), gt, i, mass, newtonTol, nurbs, orderOfAccuracy, p0, pg, pistonOption, pressureAndBodyForcedPistonMotion, pressureDrivenPistonMotion, printF(), rho0, rtol, setGlobalConstants(), specifiedPistonMotion, ta, tFinal, x, and xe.

Referenced by Parameters::updateUserDefinedKnownSolution().

Member Data Documentation

real PistonMotion::a0

protected

Referenced by dirkImplicitSolve(), getFlow(), PistonMotion(), setGlobalConstants(), and update().

real PistonMotion::ag

protected

Referenced by getFlow(), getPiston(), getPosition(), getVelocity(), PistonMotion(), and update().

real PistonMotion::area

protected

Referenced by dirkImplicitSolve(), PistonMotion(), setGlobalConstants(), and update().

real PistonMotion::bf[4]

protected

Referenced by dirkImplicitSolve(), PistonMotion(), and update().

real PistonMotion::cfl

protected

Referenced by computePistonMotion(), and PistonMotion().

int PistonMotion::debug

protected

Referenced by dirkImplicitSolve(), PistonMotion(), and update().

real PistonMotion::dt0

protected

Referenced by computePistonMotion(), and PistonMotion().

real PistonMotion::gamma

protected

Referenced by dirkImplicitSolve(), getFlow(), PistonMotion(), setGlobalConstants(), and update().

real PistonMotion::mass

protected

Referenced by dirkImplicitSolve(), PistonMotion(), setGlobalConstants(), and update().

real PistonMotion::newtonTol

protected

Referenced by dirkImplicitSolve(), PistonMotion(), and update().

NurbsMapping* PistonMotion::nurbs

protected

Referenced by computePistonMotion(), getPiston(), getPosition(), getVelocity(), PistonMotion(), update(), and ~PistonMotion().

int PistonMotion::orderOfAccuracy

protected

Referenced by computePistonMotion(), dirkImplicitSolve(), PistonMotion(), timeStep(), and update().

real PistonMotion::p0

protected

Referenced by dirkImplicitSolve(), getFlow(), PistonMotion(), setGlobalConstants(), and update().

real PistonMotion::pg

protected

Referenced by getFlow(), getPiston(), getPosition(), getVelocity(), PistonMotion(), and update().

PistonOptionsEnum PistonMotion::pistonOption

protected

Referenced by computePistonMotion(), getFlow(), getPiston(), getPosition(), getVelocity(), PistonMotion(), and update().

real PistonMotion::rho0

protected

Referenced by getFlow(), PistonMotion(), and update().

real PistonMotion::rtol

protected

Referenced by computePistonMotion(), PistonMotion(), and update().

real PistonMotion::tFinal

protected

Referenced by computePistonMotion(), getPiston(), getPosition(), getVelocity(), PistonMotion(), and update().

real PistonMotion::u0

protected

Referenced by PistonMotion().

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The documentation for this class was generated from the following files:

• PistonMotion.h
• PistonMotion.C