diff --git a/src/ODE/Make/files b/src/ODE/Make/files index a22ec1d3bedce5f75bb0a02275d85c48e0b5f857..c7e68837e024efe175951dda777803b183d81c2b 100644 --- a/src/ODE/Make/files +++ b/src/ODE/Make/files @@ -9,7 +9,9 @@ ODESolvers/RKF45/RKF45.C ODESolvers/RKCK45/RKCK45.C ODESolvers/RKDP45/RKDP45.C ODESolvers/Rosenbrock21/Rosenbrock21.C +ODESolvers/Rosenbrock32/Rosenbrock32.C ODESolvers/Rosenbrock43/Rosenbrock43.C +ODESolvers/rodas32/rodas32.C ODESolvers/rodas43/rodas43.C ODESolvers/SIBS/SIBS.C ODESolvers/SIBS/SIMPR.C diff --git a/src/ODE/ODESolvers/Rosenbrock21/Rosenbrock21.C b/src/ODE/ODESolvers/Rosenbrock21/Rosenbrock21.C index de6b968348ac0b5811d0d99bf44349e91070f4b3..13371a8e90a2bb909aa71107087a1d38606b14e0 100644 --- a/src/ODE/ODESolvers/Rosenbrock21/Rosenbrock21.C +++ b/src/ODE/ODESolvers/Rosenbrock21/Rosenbrock21.C @@ -42,8 +42,8 @@ const scalar Rosenbrock21::b2 = (1.0/2.0)/gamma, Rosenbrock21::e1 = b1 - 1.0/gamma, Rosenbrock21::e2 = b2, - Rosenbrock21::d1 = 1, - Rosenbrock21::d2 = -1; + Rosenbrock21::d1 = gamma, + Rosenbrock21::d2 = -gamma; } diff --git a/src/ODE/ODESolvers/Rosenbrock32/Rosenbrock32.C b/src/ODE/ODESolvers/Rosenbrock32/Rosenbrock32.C new file mode 100644 index 0000000000000000000000000000000000000000..e471e3ffe18da6b1ed605462c5dde0976260bbb2 --- /dev/null +++ b/src/ODE/ODESolvers/Rosenbrock32/Rosenbrock32.C @@ -0,0 +1,161 @@ +/*---------------------------------------------------------------------------*\ + ========= | + \\ / F ield | OpenFOAM: The Open Source CFD Toolbox + \\ / O peration | + \\ / A nd | Copyright (C) 2013 OpenFOAM Foundation + \\/ 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 "Rosenbrock32.H" +#include "addToRunTimeSelectionTable.H" + +// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * // + +namespace Foam +{ + defineTypeNameAndDebug(Rosenbrock32, 0); + addToRunTimeSelectionTable(ODESolver, Rosenbrock32, dictionary); + +const scalar + Rosenbrock32::a21 = 1, + Rosenbrock32::a31 = 1, + Rosenbrock32::a32 = 0, + + Rosenbrock32::c21 = -1.0156171083877702091975600115545, + Rosenbrock32::c31 = 4.0759956452537699824805835358067, + Rosenbrock32::c32 = 9.2076794298330791242156818474003, + + Rosenbrock32::b1 = 1, + Rosenbrock32::b2 = 6.1697947043828245592553615689730, + Rosenbrock32::b3 = -0.4277225654321857332623837380651, + + Rosenbrock32::e1 = 0.5, + Rosenbrock32::e2 = -2.9079558716805469821718236208017, + Rosenbrock32::e3 = 0.2235406989781156962736090927619, + + Rosenbrock32::gamma = 0.43586652150845899941601945119356, + Rosenbrock32::c2 = 0.43586652150845899941601945119356, + + Rosenbrock32::d1 = 0.43586652150845899941601945119356, + Rosenbrock32::d2 = 0.24291996454816804366592249683314, + Rosenbrock32::d3 = 2.1851380027664058511513169485832; +} + + +// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // + +Foam::Rosenbrock32::Rosenbrock32(const ODESystem& ode, const dictionary& dict) +: + ODESolver(ode, dict), + adaptiveSolver(ode, dict), + k1_(n_), + k2_(n_), + k3_(n_), + err_(n_), + dydx_(n_), + dfdx_(n_), + dfdy_(n_, n_), + a_(n_, n_), + pivotIndices_(n_) +{} + + +// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * // + +Foam::scalar Foam::Rosenbrock32::solve +( + const ODESystem& ode, + const scalar x0, + const scalarField& y0, + const scalarField& dydx0, + const scalar dx, + scalarField& y +) const +{ + ode.jacobian(x0, y0, dfdx_, dfdy_); + + for (register label i=0; i<n_; i++) + { + for (register label j=0; j<n_; j++) + { + a_[i][j] = -dfdy_[i][j]; + } + + a_[i][i] += 1.0/(gamma*dx); + } + + LUDecompose(a_, pivotIndices_); + + // Calculate k1: + forAll(k1_, i) + { + k1_[i] = dydx0[i] + dx*d1*dfdx_[i]; + } + + LUBacksubstitute(a_, pivotIndices_, k1_); + + // Calculate k2: + forAll(y, i) + { + y[i] = y0[i] + a21*k1_[i]; + } + + ode.derivatives(x0 + c2*dx, y, dydx_); + + forAll(k2_, i) + { + k2_[i] = dydx_[i] + dx*d2*dfdx_[i] + c21*k1_[i]/dx; + } + + LUBacksubstitute(a_, pivotIndices_, k2_); + + // Calculate k3: + forAll(k3_, i) + { + k3_[i] = dydx_[i] + dx*d3*dfdx_[i] + + (c31*k1_[i] + c32*k2_[i])/dx; + } + + LUBacksubstitute(a_, pivotIndices_, k3_); + + // Calculate error and update state: + forAll(y, i) + { + y[i] = y0[i] + b1*k1_[i] + b2*k2_[i] + b3*k3_[i]; + err_[i] = e1*k1_[i] + e2*k2_[i] + e3*k3_[i]; + } + + return normalizeError(y0, y, err_); +} + + +void Foam::Rosenbrock32::solve +( + const ODESystem& odes, + scalar& x, + scalarField& y, + scalar& dxTry +) const +{ + adaptiveSolver::solve(odes, x, y, dxTry); +} + + +// ************************************************************************* // diff --git a/src/ODE/ODESolvers/Rosenbrock32/Rosenbrock32.H b/src/ODE/ODESolvers/Rosenbrock32/Rosenbrock32.H new file mode 100644 index 0000000000000000000000000000000000000000..8cd2e50dbd9818aabcf0cb30b9455dd777c83ff5 --- /dev/null +++ b/src/ODE/ODESolvers/Rosenbrock32/Rosenbrock32.H @@ -0,0 +1,135 @@ +/*---------------------------------------------------------------------------*\ + ========= | + \\ / F ield | OpenFOAM: The Open Source CFD Toolbox + \\ / O peration | + \\ / A nd | Copyright (C) 2013 OpenFOAM Foundation + \\/ 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/>. + +Class + Foam::Rosenbrock32 + +Description + L-stable embedded Rosenbrock ODE solver of order (3)4. + + References: + \verbatim + Sandu et al, + "Benchmarking stiff ODE solvers for atmospheric chemistry problems II + Rosenbrock solvers", + A. Sandu, + J.G. Verwer, + J.G. Blom, + E.J. Spee, + G.R. Carmichael, + F.A. Potra, + Atmospheric Environment, Volume 31, 1997, Issue 20, Pages 3459-3472 + \endverbatim + +SourceFiles + Rosenbrock32.C + +\*---------------------------------------------------------------------------*/ + +#ifndef Rosenbrock32_H +#define Rosenbrock32_H + +#include "ODESolver.H" +#include "adaptiveSolver.H" + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +namespace Foam +{ + +/*---------------------------------------------------------------------------*\ + Class Rosenbrock32 Declaration +\*---------------------------------------------------------------------------*/ + +class Rosenbrock32 +: + public ODESolver, + public adaptiveSolver +{ + // Private data + + mutable scalarField k1_; + mutable scalarField k2_; + mutable scalarField k3_; + mutable scalarField err_; + mutable scalarField dydx_; + mutable scalarField dfdx_; + mutable scalarSquareMatrix dfdy_; + mutable scalarSquareMatrix a_; + mutable labelList pivotIndices_; + + static const scalar + a21, a31, a32, + c21, c31, c32, + b1, b2, b3, + e1, e2, e3, + gamma, + c2, c3, + d1, d2, d3; + + +public: + + //- Runtime type information + TypeName("Rosenbrock32"); + + + // Constructors + + //- Construct from ODE + Rosenbrock32(const ODESystem& ode, const dictionary& dict); + + + // Member Functions + + //- Solve a single step dx and return the error + scalar solve + ( + const ODESystem& ode, + const scalar x0, + const scalarField& y0, + const scalarField& dydx0, + const scalar dx, + scalarField& y + ) const; + + //- Solve the ODE system and the update the state + void solve + ( + const ODESystem& ode, + scalar& x, + scalarField& y, + scalar& dxTry + ) const; +}; + + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +} // End namespace Foam + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +#endif + +// ************************************************************************* // diff --git a/src/ODE/ODESolvers/Rosenbrock43/Rosenbrock43.C b/src/ODE/ODESolvers/Rosenbrock43/Rosenbrock43.C index 04b55dbbe61db7663fd3a300028e8b8a5f234be5..061390fdbc9e343251ac7d04da11001fdcdbedc4 100644 --- a/src/ODE/ODESolvers/Rosenbrock43/Rosenbrock43.C +++ b/src/ODE/ODESolvers/Rosenbrock43/Rosenbrock43.C @@ -91,7 +91,7 @@ const scalar Rosenbrock43::e3 = 0, Rosenbrock43::e4 = 125.0/108.0, - Rosenbrock43::gamma = 0.5, + Rosenbrock43::gamma = 1.0/2.0, Rosenbrock43::c2 = 1, Rosenbrock43::c3 = 3.0/5.0, diff --git a/src/ODE/ODESolvers/rodas32/rodas32.C b/src/ODE/ODESolvers/rodas32/rodas32.C new file mode 100644 index 0000000000000000000000000000000000000000..6221788ea6424d0ec3d0d3d1953ebd20af598a7b --- /dev/null +++ b/src/ODE/ODESolvers/rodas32/rodas32.C @@ -0,0 +1,166 @@ +/*---------------------------------------------------------------------------*\ + ========= | + \\ / F ield | OpenFOAM: The Open Source CFD Toolbox + \\ / O peration | + \\ / A nd | Copyright (C) 2013 OpenFOAM Foundation + \\/ 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 "rodas32.H" +#include "addToRunTimeSelectionTable.H" + +// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * // + +namespace Foam +{ + defineTypeNameAndDebug(rodas32, 0); + addToRunTimeSelectionTable(ODESolver, rodas32, dictionary); + +const scalar + rodas32::c3 = 1, + rodas32::d1 = 1.0/2.0, + rodas32::d2 = 3.0/2.0, + rodas32::a31 = 2, + rodas32::a41 = 2, + rodas32::c21 = 4, + rodas32::c31 = 1, + rodas32::c32 = -1, + rodas32::c41 = 1, + rodas32::c42 = -1, + rodas32::c43 = -8.0/3.0, + rodas32::gamma = 1.0/2.0; +} + + +// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * // + +Foam::rodas32::rodas32(const ODESystem& ode, const dictionary& dict) +: + ODESolver(ode, dict), + adaptiveSolver(ode, dict), + k1_(n_), + k2_(n_), + k3_(n_), + dy_(n_), + err_(n_), + dydx_(n_), + dfdx_(n_), + dfdy_(n_, n_), + a_(n_, n_), + pivotIndices_(n_) +{} + + +// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * // + +Foam::scalar Foam::rodas32::solve +( + const ODESystem& ode, + const scalar x0, + const scalarField& y0, + const scalarField& dydx0, + const scalar dx, + scalarField& y +) const +{ + ode.jacobian(x0, y0, dfdx_, dfdy_); + + for (register label i=0; i<n_; i++) + { + for (register label j=0; j<n_; j++) + { + a_[i][j] = -dfdy_[i][j]; + } + + a_[i][i] += 1.0/(gamma*dx); + } + + LUDecompose(a_, pivotIndices_); + + // Calculate k1: + forAll(k1_, i) + { + k1_[i] = dydx0[i] + dx*d1*dfdx_[i]; + } + + LUBacksubstitute(a_, pivotIndices_, k1_); + + // Calculate k2: + forAll(k2_, i) + { + k2_[i] = dydx0[i] + dx*d2*dfdx_[i] + c21*k1_[i]/dx; + } + + LUBacksubstitute(a_, pivotIndices_, k2_); + + // Calculate k3: + forAll(y, i) + { + dy_[i] = a31*k1_[i]; + y[i] = y0[i] + dy_[i]; + } + + ode.derivatives(x0 + dx, y, dydx_); + + forAll(k3_, i) + { + k3_[i] = dydx_[i] + (c31*k1_[i] + c32*k2_[i])/dx; + } + + LUBacksubstitute(a_, pivotIndices_, k3_); + + // Calculate new state and error + forAll(y, i) + { + dy_[i] += k3_[i]; + y[i] = y0[i] + dy_[i]; + } + + ode.derivatives(x0 + dx, y, dydx_); + + forAll(err_, i) + { + err_[i] = dydx_[i] + (c41*k1_[i] + c42*k2_[i] + c43*k3_[i])/dx; + } + + LUBacksubstitute(a_, pivotIndices_, err_); + + forAll(y, i) + { + y[i] = y0[i] + dy_[i] + err_[i]; + } + + return normalizeError(y0, y, err_); +} + + +void Foam::rodas32::solve +( + const ODESystem& odes, + scalar& x, + scalarField& y, + scalar& dxTry +) const +{ + adaptiveSolver::solve(odes, x, y, dxTry); +} + + +// ************************************************************************* // diff --git a/src/ODE/ODESolvers/rodas32/rodas32.H b/src/ODE/ODESolvers/rodas32/rodas32.H new file mode 100644 index 0000000000000000000000000000000000000000..5cd05e9a658053bf9dc113a457a9e8efce7d8e02 --- /dev/null +++ b/src/ODE/ODESolvers/rodas32/rodas32.H @@ -0,0 +1,135 @@ +/*---------------------------------------------------------------------------*\ + ========= | + \\ / F ield | OpenFOAM: The Open Source CFD Toolbox + \\ / O peration | + \\ / A nd | Copyright (C) 2013 OpenFOAM Foundation + \\/ 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/>. + +Class + Foam::rodas32 + +Description + L-stable, stiffly-accurate embedded Rosenbrock ODE solver of order (2)3. + + References: + \verbatim + Sandu et al, + "Benchmarking stiff ODE solvers for atmospheric chemistry problems II + Rosenbrock solvers", + A. Sandu, + J.G. Verwer, + J.G. Blom, + E.J. Spee, + G.R. Carmichael, + F.A. Potra, + Atmospheric Environment, Volume 31, 1997, Issue 20, Pages 3459-3472 + \endverbatim + +SourceFiles + rodas32.C + +\*---------------------------------------------------------------------------*/ + +#ifndef rodas32_H +#define rodas32_H + +#include "ODESolver.H" +#include "adaptiveSolver.H" + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +namespace Foam +{ + +/*---------------------------------------------------------------------------*\ + Class rodas32 Declaration +\*---------------------------------------------------------------------------*/ + +class rodas32 +: + public ODESolver, + public adaptiveSolver +{ + // Private data + + mutable scalarField k1_; + mutable scalarField k2_; + mutable scalarField k3_; + mutable scalarField dy_; + mutable scalarField err_; + mutable scalarField dydx_; + mutable scalarField dfdx_; + mutable scalarSquareMatrix dfdy_; + mutable scalarSquareMatrix a_; + mutable labelList pivotIndices_; + + static const scalar + c3, + d1, d2, + a31, + a41, + c21, c31, c32, + c41, c42, c43, + gamma; + +public: + + //- Runtime type information + TypeName("rodas32"); + + + // Constructors + + //- Construct from ODE + rodas32(const ODESystem& ode, const dictionary& dict); + + + // Member Functions + + //- Solve a single step dx and return the error + scalar solve + ( + const ODESystem& ode, + const scalar x0, + const scalarField& y0, + const scalarField& dydx0, + const scalar dx, + scalarField& y + ) const; + + //- Solve the ODE system and the update the state + void solve + ( + const ODESystem& ode, + scalar& x, + scalarField& y, + scalar& dxTry + ) const; +}; + + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +} // End namespace Foam + +// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * // + +#endif + +// ************************************************************************* // diff --git a/src/ODE/ODESolvers/rodas43/rodas43.C b/src/ODE/ODESolvers/rodas43/rodas43.C index 74a3da1d80b26df6c9f2c700907c64560450dea2..92b78a7ab46aa2b21e24ac0802bcb5fce77750c2 100644 --- a/src/ODE/ODESolvers/rodas43/rodas43.C +++ b/src/ODE/ODESolvers/rodas43/rodas43.C @@ -37,9 +37,6 @@ const scalar rodas43::c2 = 0.386, rodas43::c3 = 0.21, rodas43::c4 = 0.63, - rodas43::bet2p = 0.0317, - rodas43::bet3p = 0.0635, - rodas43::bet4p = 0.3438, rodas43::d1 = 0.25, rodas43::d2 = -0.1043, rodas43::d3 = 0.1035, diff --git a/src/ODE/ODESolvers/rodas43/rodas43.H b/src/ODE/ODESolvers/rodas43/rodas43.H index a9b8ed7fc2c82b23e82ead011c4075f17ec022c1..e77c0b423b285550779b1f19d45309cd3ed0e840 100644 --- a/src/ODE/ODESolvers/rodas43/rodas43.H +++ b/src/ODE/ODESolvers/rodas43/rodas43.H @@ -25,7 +25,7 @@ Class Foam::rodas43 Description - Stiffly-stable embedded Rosenbrock ODE solver of order (3)4. + L-stable, stiffly-accurate embedded Rosenbrock ODE solver of order (3)4. References: \verbatim @@ -79,7 +79,6 @@ class rodas43 static const scalar c2, c3, c4, - bet2p, bet3p, bet4p, d1, d2, d3, d4, a21, a31, a32, a41, a42, a43, diff --git a/src/postProcessing/functionObjects/forces/forces/forces.C b/src/postProcessing/functionObjects/forces/forces/forces.C index c24fa72729d8bdae8a5c2ca3f1734188a034caad..74b892aa1e9627b5c744bf48977176d162251f12 100644 --- a/src/postProcessing/functionObjects/forces/forces/forces.C +++ b/src/postProcessing/functionObjects/forces/forces/forces.C @@ -616,7 +616,7 @@ void Foam::forces::read(const dictionary& dict) { initialised_ = false; - log_ = dict.lookupOrDefault<Switch>("log", true); + log_ = dict.lookupOrDefault<Switch>("log", false); if (log_) { diff --git a/tutorials/combustion/chemFoam/gri/constant/chemistryProperties b/tutorials/combustion/chemFoam/gri/constant/chemistryProperties index e65509f3962c8ec4c430ea2fab6bf99729d409fe..314f83cc2da0f7328af993b2d37d22543bcf6ac4 100644 --- a/tutorials/combustion/chemFoam/gri/constant/chemistryProperties +++ b/tutorials/combustion/chemFoam/gri/constant/chemistryProperties @@ -23,7 +23,7 @@ chemistryType chemistry on; -initialChemicalTimeStep 1e-6; +initialChemicalTimeStep 1e-7; EulerImplicitCoeffs { @@ -33,9 +33,9 @@ EulerImplicitCoeffs odeCoeffs { - solver Rosenbrock43; + solver rodas32; absTol 1e-12; - relTol 1e-2; + relTol 1e-1; } diff --git a/tutorials/combustion/chemFoam/h2/constant/chemistryProperties b/tutorials/combustion/chemFoam/h2/constant/chemistryProperties index 2c0182864e6b26ac74a17767dff98e0d97028087..314f83cc2da0f7328af993b2d37d22543bcf6ac4 100644 --- a/tutorials/combustion/chemFoam/h2/constant/chemistryProperties +++ b/tutorials/combustion/chemFoam/h2/constant/chemistryProperties @@ -23,13 +23,19 @@ chemistryType chemistry on; -initialChemicalTimeStep 1e-10; +initialChemicalTimeStep 1e-7; + +EulerImplicitCoeffs +{ + cTauChem 1; + equilibriumRateLimiter off; +} odeCoeffs { - solver SIBS; + solver rodas32; absTol 1e-12; - relTol 1e-2; + relTol 1e-1; } diff --git a/tutorials/combustion/chemFoam/ic8h18/constant/chemistryProperties b/tutorials/combustion/chemFoam/ic8h18/constant/chemistryProperties index 7528b62231ac1def9a2febfeae547ff4a9919274..314f83cc2da0f7328af993b2d37d22543bcf6ac4 100644 --- a/tutorials/combustion/chemFoam/ic8h18/constant/chemistryProperties +++ b/tutorials/combustion/chemFoam/ic8h18/constant/chemistryProperties @@ -23,13 +23,19 @@ chemistryType chemistry on; -initialChemicalTimeStep 1e-10; +initialChemicalTimeStep 1e-7; + +EulerImplicitCoeffs +{ + cTauChem 1; + equilibriumRateLimiter off; +} odeCoeffs { - solver SIBS; + solver rodas32; absTol 1e-12; - relTol 1e-3; + relTol 1e-1; } diff --git a/tutorials/combustion/chemFoam/nc7h16/constant/chemistryProperties b/tutorials/combustion/chemFoam/nc7h16/constant/chemistryProperties index d7e58ddc143c14f35dbd33969ef4acdb6eba393d..aee69a3239ea0ba38d36b2315cbb9331a78c73a5 100644 --- a/tutorials/combustion/chemFoam/nc7h16/constant/chemistryProperties +++ b/tutorials/combustion/chemFoam/nc7h16/constant/chemistryProperties @@ -23,13 +23,19 @@ chemistryType chemistry on; -initialChemicalTimeStep 1e-10; +initialChemicalTimeStep 1e-7; + +EulerImplicitCoeffs +{ + cTauChem 10; + equilibriumRateLimiter no; +} odeCoeffs { - solver SIBS; + solver rodas32; absTol 1e-14; - relTol 1e-4; + relTol 1e-1; } diff --git a/tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/pointDisplacement b/tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/pointDisplacement index 33d0400057f51c5f7bf1a7e67ea576815ba76078..daff376a9d323b0fc015d085f6f15ccf2e51e110 100644 --- a/tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/pointDisplacement +++ b/tutorials/multiphase/interDyMFoam/ras/floatingObject/0.org/pointDisplacement @@ -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); } }