The modes of operation are set by the dimensions of the pressure field
to which this boundary condition is applied, the \c psi entry and the value
of \c gamma:
\table
Mode | dimensions | psi | gamma
incompressible subsonic | p/rho | |
compressible subsonic | p | none |
compressible transonic | p | psi | 1
compressible supersonic | p | psi | > 1
\endtable
For most applications the totalPressure boundary condition now only
requires p0 to be specified e.g.
outlet
{
type totalPressure;
p0 uniform 1e5;
}
56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
/*--------------------------------*- C++ -*----------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: dev |
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| \\ / A nd | Web: www.OpenFOAM.org |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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{
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version 2.0;
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format ascii;
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class volScalarField;
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object p_rgh;
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}
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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dimensions [1 -1 -2 0 0 0 0];
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internalField uniform 0;
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boundaryField
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{
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axis
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{
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type empty;
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}
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inlet
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{
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type zeroGradient;
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}
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walls
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{
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type zeroGradient;
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}
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atmosphere
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{
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type totalPressure;
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p0 uniform 0;
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}
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front
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{
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type wedge;
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}
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back
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{
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type wedge;
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}
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}
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// ************************************************************************* //
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