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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2023-2025 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 "fluidMaxDeltaT.H"
#include "basicFluidSolver.H"
#include "addToRunTimeSelectionTable.H"
// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
namespace Foam
{
namespace functionObjects
{
defineTypeNameAndDebug(fluidMaxDeltaT, 0);
addToRunTimeSelectionTable
(
functionObject,
fluidMaxDeltaT,
dictionary
);
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::functionObjects::fluidMaxDeltaT::fluidMaxDeltaT
(
const word& name,
const Time& runTime,
const dictionary& dict
)
:
fvMeshFunctionObject(name, runTime, dict)
{
read(dict);
}
// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
Foam::functionObjects::fluidMaxDeltaT::~fluidMaxDeltaT()
{}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool Foam::functionObjects::fluidMaxDeltaT::read(const dictionary& dict)
{
fvMeshFunctionObject::read(dict);
maxCoPtr_ =
Function1<scalar>::New
(
"maxCo",
time_.userUnits(),
dimless,
dict
);
maxDeltaTPtr_ =
Function1<scalar>::New
(
"maxDeltaT",
time_.userUnits(),
time_.userUnits(),
dict
);
return true;
}
bool Foam::functionObjects::fluidMaxDeltaT::execute()
{
return true;
}
bool Foam::functionObjects::fluidMaxDeltaT::write()
{
return true;
}
Foam::scalar Foam::functionObjects::fluidMaxDeltaT::maxDeltaT() const
{
scalar deltaT = maxDeltaTPtr_().value(time_.value());
const scalar CoNum =
mesh_.lookupObject<solvers::basicFluidSolver>(solver::typeName).CoNum;
if (CoNum > small)
{
const scalar maxCo = maxCoPtr_().value(time_.value());
deltaT = min(deltaT, maxCo/CoNum*time_.deltaTValue());
}
return deltaT;
}
// ************************************************************************* //
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