Merge branch 'master' of /home/dm4/OpenFOAM/OpenFOAM-dev

This commit is contained in:
andy
2013-11-08 12:07:35 +00:00
31 changed files with 1345 additions and 43 deletions

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@ -1,13 +1,11 @@
Stiff chemistry solver validation test cases
gri : GRI-Mech 3.0. CH4 combustion, 53 species, 325 reactions
h2 : H2 combustion, 10 species, 27 reactions
nc7h16 : n-Heptane combustion, 544 species, 2446 reactions
ic8h18 : iso-Octane combustion, 874 species, 3796 reactions
Results interpreted in 'validation' sub-folder, where OpenFOAM results
are compared against those predicted by Senkin (CHEMKIN II)
are compared against those predicted by CHEMKIN II.
Overall the best performing ODE solver is seulex followed closely by rodas32.

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@ -23,7 +23,7 @@ chemistryType
chemistry on;
initialChemicalTimeStep 1e-6;
initialChemicalTimeStep 1e-7;
EulerImplicitCoeffs
{
@ -33,9 +33,9 @@ EulerImplicitCoeffs
odeCoeffs
{
solver Rosenbrock43;
solver seulex;
absTol 1e-12;
relTol 1e-2;
relTol 1e-1;
}

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@ -23,13 +23,19 @@ chemistryType
chemistry on;
initialChemicalTimeStep 1e-10;
initialChemicalTimeStep 1e-7;
EulerImplicitCoeffs
{
cTauChem 1;
equilibriumRateLimiter off;
}
odeCoeffs
{
solver SIBS;
solver seulex; //rodas32;
absTol 1e-12;
relTol 1e-2;
relTol 1e-1;
}

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@ -23,13 +23,19 @@ chemistryType
chemistry on;
initialChemicalTimeStep 1e-10;
initialChemicalTimeStep 1e-7;
EulerImplicitCoeffs
{
cTauChem 1;
equilibriumRateLimiter off;
}
odeCoeffs
{
solver SIBS;
solver seulex;
absTol 1e-12;
relTol 1e-3;
relTol 1e-1;
}

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@ -23,13 +23,19 @@ chemistryType
chemistry on;
initialChemicalTimeStep 1e-10;
initialChemicalTimeStep 1e-7;
EulerImplicitCoeffs
{
cTauChem 10;
equilibriumRateLimiter no;
}
odeCoeffs
{
solver SIBS;
solver seulex;
absTol 1e-14;
relTol 1e-4;
relTol 1e-1;
}

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@ -10,7 +10,6 @@ FoamFile
version 2.0;
format ascii;
class pointVectorField;
location "0.01";
object pointDisplacement;
}
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
@ -37,8 +36,9 @@ boundaryField
centreOfMass (0.5 0.5 0.5);
momentOfInertia (0.08622222 0.08622222 0.144);
mass 9.6;
rhoInf 1; // needed only for solvers solving for kinematic pressure
rhoInf 1;
report on;
accelerationRelaxation 0.3;
value uniform (0 0 0);
}
}