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chemFoam tutorials: set ODE solver to seulex which performs best overall

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Henry
2013-11-07 18:38:58 +00:00
parent b2f8d205b6
commit bc2d925d61
5 changed files with 6 additions and 8 deletions
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6
tutorials/combustion/chemFoam/README
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@ -1,13 +1,11 @@
Stiff chemistry solver validation test cases Stiff chemistry solver validation test cases
gri : GRI-Mech 3.0. CH4 combustion, 53 species, 325 reactions gri : GRI-Mech 3.0. CH4 combustion, 53 species, 325 reactions
h2 : H2 combustion, 10 species, 27 reactions h2 : H2 combustion, 10 species, 27 reactions
nc7h16 : n-Heptane combustion, 544 species, 2446 reactions nc7h16 : n-Heptane combustion, 544 species, 2446 reactions
ic8h18 : iso-Octane combustion, 874 species, 3796 reactions ic8h18 : iso-Octane combustion, 874 species, 3796 reactions
Results interpreted in 'validation' sub-folder, where OpenFOAM results 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.

2
tutorials/combustion/chemFoam/gri/constant/chemistryProperties
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@ -33,7 +33,7 @@ EulerImplicitCoeffs
odeCoeffs odeCoeffs
{ {
solver rodas32; solver seulex;
absTol 1e-12; absTol 1e-12;
relTol 1e-1; relTol 1e-1;
} }

2
tutorials/combustion/chemFoam/h2/constant/chemistryProperties
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@ -33,7 +33,7 @@ EulerImplicitCoeffs
odeCoeffs odeCoeffs
{ {
solver rodas32; solver seulex; //rodas32;
absTol 1e-12; absTol 1e-12;
relTol 1e-1; relTol 1e-1;
} }

2
tutorials/combustion/chemFoam/ic8h18/constant/chemistryProperties
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@ -33,7 +33,7 @@ EulerImplicitCoeffs
odeCoeffs odeCoeffs
{ {
solver rodas32; solver seulex;
absTol 1e-12; absTol 1e-12;
relTol 1e-1; relTol 1e-1;
} }

2
tutorials/combustion/chemFoam/nc7h16/constant/chemistryProperties
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@ -33,7 +33,7 @@ EulerImplicitCoeffs
odeCoeffs odeCoeffs
{ {
solver rodas32; solver seulex;
absTol 1e-14; absTol 1e-14;
relTol 1e-1; relTol 1e-1;
} }