/usr/include/freefoam/dsmc/MaxwellianThermal.C is in libfreefoam-dev 0.1.0+dfsg-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | /*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration |
\\ / A nd | Copyright (C) 2009-2010 OpenCFD Ltd.
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
\*---------------------------------------------------------------------------*/
#include "MaxwellianThermal.H"
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
template <class CloudType>
Foam::MaxwellianThermal<CloudType>::MaxwellianThermal
(
const dictionary& dict,
CloudType& cloud
)
:
WallInteractionModel<CloudType>(dict, cloud, typeName)
{}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
template <class CloudType>
Foam::MaxwellianThermal<CloudType>::~MaxwellianThermal()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
template <class CloudType>
void Foam::MaxwellianThermal<CloudType>::correct
(
const wallPolyPatch& wpp,
const label faceId,
vector& U,
scalar& Ei,
label typeId
)
{
label wppIndex = wpp.index();
label wppLocalFace = wpp.whichFace(faceId);
vector nw = wpp.faceAreas()[wppLocalFace];
// Normal unit vector
nw /= mag(nw);
// Normal velocity magnitude
scalar magUn = U & nw;
// Wall tangential velocity (flow direction)
vector Ut = U - magUn*nw;
CloudType& cloud(this->owner());
Random& rndGen(cloud.rndGen());
while (mag(Ut) < SMALL)
{
// If the incident velocity is parallel to the face normal, no
// tangential direction can be chosen. Add a perturbation to the
// incoming velocity and recalculate.
U = vector
(
U.x()*(0.8 + 0.2*rndGen.scalar01()),
U.y()*(0.8 + 0.2*rndGen.scalar01()),
U.z()*(0.8 + 0.2*rndGen.scalar01())
);
magUn = U & nw;
Ut = U - magUn*nw;
}
// Wall tangential unit vector
vector tw1 = Ut/mag(Ut);
// Other tangential unit vector
vector tw2 = nw^tw1;
scalar T = cloud.boundaryT().boundaryField()[wppIndex][wppLocalFace];
scalar mass = cloud.constProps(typeId).mass();
scalar iDof = cloud.constProps(typeId).internalDegreesOfFreedom();
U =
sqrt(CloudType::kb*T/mass)
*(
rndGen.GaussNormal()*tw1
+ rndGen.GaussNormal()*tw2
- sqrt(-2.0*log(max(1 - rndGen.scalar01(), VSMALL)))*nw
);
U += cloud.boundaryU().boundaryField()[wppIndex][wppLocalFace];
Ei = cloud.equipartitionInternalEnergy(T, iDof);
}
// ************************ vim: set sw=4 sts=4 et: ************************ //
|