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Merge branch 'master' of ssh://noisy/home/noisy3/OpenFOAM/OpenFOAM-dev
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@ -48,12 +48,12 @@ oxidant
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burntProducts
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{
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nMoles 1;
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molWeight 28.8478;
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Tlow 298.15;
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Thigh 5000;
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molWeight 28.6068;
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Tlow 200;
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Thigh 6000;
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Tcommon 1000;
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highCpCoeffs ( 3.10156 0.00124723 -4.2071e-07 6.66805e-11 -3.92581e-15 -1092.96 5.35255 );
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lowCpCoeffs ( 3.58264 -0.000711179 1.64893e-06 -9.37968e-11 -4.35761e-13 -1158.24 3.11438 );
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highCpCoeffs ( 3.12468 0.00178578 -5.94695e-07 9.09801e-11 -5.1246e-15 -11005.8 5.03593 );
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lowCpCoeffs ( 3.47612 0.000758205 -3.68739e-07 1.3449e-09 -8.08868e-13 -11071.5 3.3058 );
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As 1.67212e-06;
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Ts 170.672;
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}
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52
tutorials/discreteMethods/dsmcFoam/README
Normal file
52
tutorials/discreteMethods/dsmcFoam/README
Normal file
@ -0,0 +1,52 @@
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Fields are used by dsmcFoam in several ways, some of which are different to
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their use elsewhere in OpenFOAM. None of these fields are solved by partial
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differential equations, they are used either to record simulation data, or to
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supply boundary data.
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In each case there are 11 fields:
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boundaryT, boundaryU:
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The wall and free stream conditions at the boundary are specified for
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velocity and temperature with these fields - only the data on the
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patches is used, the cell data is not. These are the only two fields
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which supply data to the case.
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dsmcRhoN:
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The population of dsmc particles in cells is recorded to visualise how
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well the cell population conditions required for dsmc are met. The
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boundary conditions are zeroGradient because only cell data is
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meaningful.
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fD, q:
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The wall heat flux (q) and force density (fD, i.e. stress vector) is
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recorded with these fields - only the data on wall patches is relevant,
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the cell data is not.
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iDof, internalE, linearKE, momentum, rhoM, rhoN:
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These fields are the densities of extensive quantities in the
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simulation, i.e. of number, mass, momentum, energy. Cell data is
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recorded in the internal field and the boundaryField is used to record
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the data of particles that strike wall patches. The properties of
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particles striking wall faces are weighted by 1/(Un*fA), where Un is the
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normal component of the particle's velocity and fA is the face area.
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This is done so that when intensive quantities, such as velocity or
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temperature, are evaluated on the wall the values are correct this
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allows velocity slip and temperature jump to be evaluated.
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Therefore, the data in these fields on wall patches is of a different
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type to the volume data. This may cause problems when post-processing,
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as any interpolation of these fields will have a artifacts in the near
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wall cells because the values on the faces are radically different.
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This can be overcome by visualising the data uninterpolated, or by
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copying the fields and setting zeroGradient boundary conditions on
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walls. Calculated intensive fields do not have this issue.
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Further fields are produced by dsmcFoam, i.e. dsmcSigmaTcRMax (used in the
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selection of collision partners) and by the fieldAverage (averaging the
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extensive quantity densities) and dsmcFields (calculating intensive quantities,
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i.e. velocity and temperature, from extensive quantities) function objects in
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each case as it runs.
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@ -1,8 +1,8 @@
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/*---------------------------------------------------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: 1.6 |
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| \\ / A nd | Web: http://www.openfoam.org |
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| \\ / O peration | Version: dev |
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| \\ / A nd | Web: http://www.OpenFOAM.com |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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@ -1,8 +1,8 @@
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/*---------------------------------------------------------------------------*\
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| ========= | |
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| \\ / F ield | OpenFOAM: The Open Source CFD Toolbox |
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| \\ / O peration | Version: 1.6 |
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| \\ / A nd | Web: http://www.openfoam.org |
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| \\ / O peration | Version: dev |
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| \\ / A nd | Web: http://www.OpenFOAM.com |
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| \\/ M anipulation | |
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\*---------------------------------------------------------------------------*/
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FoamFile
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