PressureField Class Reference

Traction field based on a given scalar pressure function. More...

#include <TractionField.h>

Inheritance diagram for PressureField:

Collaboration diagram for PressureField:

Public Member Functions
	PressureField (Real p, int dir=0)
	Constructor initializing a constant pressure field. More...
	PressureField (const RealFunc *p, int dir=0)
	Constructor initializing the scalar pressure field function. More...
	PressureField (const RealFunc *p, const VecFunc *dir)
	Constructor initializing the scalar pressure field function. More...
virtual	~PressureField ()
	The destructor frees the scalar and vector field functions.
virtual bool	isNormalPressure () const
	Returns whether the traction is always normal to the face or not.
virtual bool	isZero () const
	Returns whether the function is identically zero or not.
virtual Vec3	deriv (const Vec3 &x, const Vec3 &n) const
	Returns the time-derivative of the function. More...
Public Member Functions inherited from TractionFunc
virtual Vec3	timeDerivative (const Vec3 &, const Vec3 &) const
	Returns the time-derivative of the function.
Public Member Functions inherited from utl::Function2< Vec3, Vec3 >
virtual	~Function2 ()
	Empty destructor.
Vec3	operator() (const Vec3 &x, const Vec3 &y) const
	Operator returning the function value for the given arguments.

Protected Member Functions
virtual Vec3	evaluate (const Vec3 &x, const Vec3 &n) const
	Evaluates the traction field function at the specified point. More...
Protected Member Functions inherited from utl::Function2< Vec3, Vec3 >
	Function2 ()
	The constructor is protected to allow sub-class instances only.

Private Attributes
const RealFunc *	pressure
	Scalar field to derive the traction field from.
char	pdir
	The global pressure direction (0...3)
const VecFunc *	pdfn
	Varying global pressure direction.

Additional Inherited Members
Public Types inherited from utl::Function2< Vec3, Vec3 >
typedef Vec3	Input
	Input type.
typedef Vec3	Output
	Output type.

Detailed Description

Traction field based on a given scalar pressure function.

This class defines an explicit traction field function based on a specified scalar pressure function and a traction direction. The traction direction can either be one of the global coordinate axes, the surface normal vector (water pressure), or it can also be an arbitrary spatial and/or temporal function (the class member pdfn), which must evaluate to a vector of unit length.

Constructor & Destructor Documentation

PressureField() [1/3]

PressureField::PressureField ( Real  p, int  dir = 0  )

explicit

Constructor initializing a constant pressure field.

Parameters

[in]	p	The constant pressure value
[in]	dir	The global direction the pressure is acting in

References pressure.

PressureField() [2/3]

PressureField::PressureField ( const RealFunc *  p, int  dir = 0  )

inlineexplicit

Constructor initializing the scalar pressure field function.

Parameters

[in]	p	The scalar field defining the spatial pressure distribution
[in]	dir	The global direction the pressure is acting in

PressureField() [3/3]

PressureField::PressureField ( const RealFunc *  p, const VecFunc *  dir  )

inline

Constructor initializing the scalar pressure field function.

Parameters

[in]	p	The scalar field defining the spatial pressure distribution
[in]	dir	The global direction the pressure is acting in

Member Function Documentation

deriv()

Vec3 PressureField::deriv ( const Vec3 &  x, const Vec3 &  n  ) const

virtual

Returns the time-derivative of the function.

Parameters

[in]	x	Global coordinates of evaluation point
[in]	n	Outward-directed unit normal vector at evaluation point

References utl::SpatialFunction< Result >::deriv(), Vec3::normalize(), pdfn, pdir, and pressure.

evaluate()

Vec3 PressureField::evaluate ( const Vec3 &  x, const Vec3 &  n  ) const

protectedvirtual

Evaluates the traction field function at the specified point.

Parameters

[in]	x	Global coordinates of evaluation point
[in]	n	Outward-directed unit normal vector at evaluation point

Implements utl::Function2< Vec3, Vec3 >.

References Vec3::normalize(), pdfn, pdir, and pressure.

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

• src/Utility/TractionField.h
• src/Utility/Functions.C
• src/Utility/TractionField.C