syringePressureFvPatchScalarField Class Reference

This boundary condition provides a pressure condition, obtained from a zero-D model of the cylinder of a syringe. More...

Inheritance diagram for syringePressureFvPatchScalarField:

Collaboration diagram for syringePressureFvPatchScalarField:

Public Member Functions
	TypeName ("syringePressure")
	syringePressureFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &)
	syringePressureFvPatchScalarField (const fvPatch &, const DimensionedField< scalar, volMesh > &, const dictionary &)
	syringePressureFvPatchScalarField (const syringePressureFvPatchScalarField &, const fvPatch &, const DimensionedField< scalar, volMesh > &, const fvPatchFieldMapper &)
virtual tmp< fvPatchScalarField >	clone () const
	syringePressureFvPatchScalarField (const syringePressureFvPatchScalarField &)
	syringePressureFvPatchScalarField (const syringePressureFvPatchScalarField &, const DimensionedField< scalar, volMesh > &)
virtual tmp< fvPatchScalarField >	clone (const DimensionedField< scalar, volMesh > &iF) const
virtual void	updateCoeffs ()
virtual void	write (Ostream &) const

Detailed Description

This boundary condition provides a pressure condition, obtained from a zero-D model of the cylinder of a syringe.

The syringe cylinder is defined by its initial volume, piston area and velocity profile specified by regions of constant acceleration, speed and deceleration. The gas in the cylinder is described by its initial pressure and compressibility which is assumed constant, i.e. isothermal expansion/compression.

Usage

Property	Description	Required	Default value
Ap	syringe piston area [m2]	yes
Sp	syringe piston speed [m/s]	yes
VsI	initial syringe volume [m3]	yes
tas	start of piston acceleration [s]	yes
tae	end of piston acceleration [s]	yes
tds	start of piston deceleration [s]	yes
tde	end of piston deceleration [s]	yes
psI	initial syringe pressure [Pa]	yes
psi	gas compressibility [m2/s2]	yes
ams	added (or removed) gas mass [kg]	yes

Example of the BC specification:

    <patchName>
    {
        type            syringePressure;
        Ap              1.388e-6;
        Sp              0.01;
        VsI             1.388e-8;
        tas             0.001;
        tae             0.002;
        tds             0.005;
        tde             0.006;
        psI             1e5;
        psi             1e-5;
        ams             0;
        value           uniform 0;
    }

See also

Foam::fixedValueFvPatchField

Source files

• syringePressureFvPatchScalarField.H
• syringePressureFvPatchScalarField.C

Definition at line 148 of file syringePressureFvPatchScalarField.H.

Constructor & Destructor Documentation

syringePressureFvPatchScalarField() [1/5]

syringePressureFvPatchScalarField	(	const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF
	)

Definition at line 31 of file syringePressureFvPatchScalarField.C.

Referenced by syringePressureFvPatchScalarField::clone().

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syringePressureFvPatchScalarField() [2/5]

syringePressureFvPatchScalarField	(	const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF,
		const dictionary &	dict
	)

Definition at line 43 of file syringePressureFvPatchScalarField.C.

syringePressureFvPatchScalarField() [3/5]

syringePressureFvPatchScalarField	(	const syringePressureFvPatchScalarField &	sppsf,
		const fvPatch &	p,
		const DimensionedField< scalar, volMesh > &	iF,
		const fvPatchFieldMapper &	mapper
	)

Definition at line 70 of file syringePressureFvPatchScalarField.C.

syringePressureFvPatchScalarField() [4/5]

syringePressureFvPatchScalarField

(

const syringePressureFvPatchScalarField &

sppsf

)

Definition at line 118 of file syringePressureFvPatchScalarField.C.

syringePressureFvPatchScalarField() [5/5]

syringePressureFvPatchScalarField	(	const syringePressureFvPatchScalarField &	sppsf,
		const DimensionedField< scalar, volMesh > &	iF
	)

Definition at line 95 of file syringePressureFvPatchScalarField.C.

Member Function Documentation

TypeName()

TypeName

(

"syringePressure"

)

clone() [1/2]

virtual tmp<fvPatchScalarField> clone ( ) const

inlinevirtual

Definition at line 234 of file syringePressureFvPatchScalarField.H.

References syringePressureFvPatchScalarField::syringePressureFvPatchScalarField().

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clone() [2/2]

virtual tmp<fvPatchScalarField> clone ( const DimensionedField< scalar, volMesh > &  iF ) const

inlinevirtual

Definition at line 257 of file syringePressureFvPatchScalarField.H.

References syringePressureFvPatchScalarField::syringePressureFvPatchScalarField().

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updateCoeffs()

void updateCoeffs ( )

virtual

Definition at line 180 of file syringePressureFvPatchScalarField.C.

References Foam::dimArea, Foam::dimDensity, Foam::dimVelocity, Foam::exit(), Foam::FatalError, FatalErrorInFunction, Foam::operator==(), Foam::foamVersion::patch, phi, Foam::sum(), and timeIndex.

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write()

void write ( Ostream &  os ) const

virtual

Definition at line 228 of file syringePressureFvPatchScalarField.C.

References os(), fvPatchField::write(), Ostream::writeEntry(), and Ostream::writeEntryIfDifferent().

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

• src/finiteVolume/fields/fvPatchFields/derived/syringePressure/syringePressureFvPatchScalarField.H
• src/finiteVolume/fields/fvPatchFields/derived/syringePressure/syringePressureFvPatchScalarField.C