fc2b2d0c05
In early versions of OpenFOAM the scalar limits were simple macro replacements and the
names were capitalized to indicate this. The scalar limits are now static
constants which is a huge improvement on the use of macros and for consistency
the names have been changed to camel-case to indicate this and improve
readability of the code:
GREAT -> great
ROOTGREAT -> rootGreat
VGREAT -> vGreat
ROOTVGREAT -> rootVGreat
SMALL -> small
ROOTSMALL -> rootSmall
VSMALL -> vSmall
ROOTVSMALL -> rootVSmall
The original capitalized are still currently supported but their use is
deprecated.
69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2011-2018 OpenFOAM Foundation
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Global
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setMultiRegionDeltaT
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Description
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Reset the timestep to maintain a constant maximum courant and
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diffusion Numbers. Reduction of time-step is immediate, but
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increase is damped to avoid unstable oscillations.
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\*---------------------------------------------------------------------------*/
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if (adjustTimeStep)
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{
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if (CoNum == -great)
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{
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CoNum = small;
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}
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if (DiNum == -great)
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{
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DiNum = small;
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}
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scalar maxDeltaTFluid = maxCo/(CoNum + small);
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scalar maxDeltaTSolid = maxDi/(DiNum + small);
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scalar deltaTFluid =
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min
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(
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min(maxDeltaTFluid, 1.0 + 0.1*maxDeltaTFluid),
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1.2
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);
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runTime.setDeltaT
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(
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min
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(
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min(deltaTFluid, maxDeltaTSolid)*runTime.deltaT().value(),
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maxDeltaT
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)
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);
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Info<< "deltaT = " << runTime.deltaT().value() << endl;
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}
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// ************************************************************************* //
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