56bfc75949
"pos" now returns 1 if the argument is greater than 0, otherwise it returns 0. This is consistent with the common mathematical definition of the "pos" function: https://en.wikipedia.org/wiki/Sign_(mathematics) However the previous implementation in which 1 was also returned for a 0 argument is useful in many situations so the "pos0" has been added which returns 1 if the argument is greater or equal to 0. Additionally the "neg0" has been added which returns 1 if if the argument is less than or equal to 0.
129 lines
3.7 KiB
C
129 lines
3.7 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) 2011-2017 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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\*---------------------------------------------------------------------------*/
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#include "dynamicInkJetFvMesh.H"
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#include "addToRunTimeSelectionTable.H"
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#include "volFields.H"
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#include "mathematicalConstants.H"
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// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
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namespace Foam
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{
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defineTypeNameAndDebug(dynamicInkJetFvMesh, 0);
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addToRunTimeSelectionTable(dynamicFvMesh, dynamicInkJetFvMesh, IOobject);
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}
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// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
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Foam::dynamicInkJetFvMesh::dynamicInkJetFvMesh(const IOobject& io)
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:
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dynamicFvMesh(io),
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dynamicMeshCoeffs_
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(
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IOdictionary
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(
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IOobject
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(
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"dynamicMeshDict",
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io.time().constant(),
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*this,
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IOobject::MUST_READ_IF_MODIFIED,
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IOobject::NO_WRITE,
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false
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)
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).optionalSubDict(typeName + "Coeffs")
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),
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amplitude_(readScalar(dynamicMeshCoeffs_.lookup("amplitude"))),
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frequency_(readScalar(dynamicMeshCoeffs_.lookup("frequency"))),
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refPlaneX_(readScalar(dynamicMeshCoeffs_.lookup("refPlaneX"))),
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stationaryPoints_
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(
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IOobject
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(
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"points",
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io.time().constant(),
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meshSubDir,
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*this,
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IOobject::MUST_READ,
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IOobject::NO_WRITE
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)
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)
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{
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Info<< "Performing a dynamic mesh calculation: " << endl
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<< "amplitude: " << amplitude_
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<< " frequency: " << frequency_
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<< " refPlaneX: " << refPlaneX_ << endl;
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}
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// * * * * * * * * * * * * * * * * Destructor * * * * * * * * * * * * * * * //
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Foam::dynamicInkJetFvMesh::~dynamicInkJetFvMesh()
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{}
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// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
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bool Foam::dynamicInkJetFvMesh::update()
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{
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scalar scalingFunction =
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0.5*
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(
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::cos(constant::mathematical::twoPi*frequency_*time().value())
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- 1.0
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);
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Info<< "Mesh scaling. Time = " << time().value() << " scaling: "
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<< scalingFunction << endl;
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pointField newPoints = stationaryPoints_;
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newPoints.replace
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(
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vector::X,
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stationaryPoints_.component(vector::X)*
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(
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1.0
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+ pos0
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(
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- (stationaryPoints_.component(vector::X))
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- refPlaneX_
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)*amplitude_*scalingFunction
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)
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);
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fvMesh::movePoints(newPoints);
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volVectorField& U =
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const_cast<volVectorField&>(lookupObject<volVectorField>("U"));
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U.correctBoundaryConditions();
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return true;
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}
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// ************************************************************************* //
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