Creation of OpenFOAM-dev repository 15/04/2008

src/engine/engineMesh/fvMotionSolverEngineMesh/fvMotionSolverEngineMesh.C

@@ -0,0 +1,133 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 1991-2007 OpenCFD Ltd.
+     \\/     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 2 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, write to the Free Software Foundation,
+    Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvMotionSolverEngineMesh.H"
+#include "addToRunTimeSelectionTable.H"
+#include "fvcMeshPhi.H"
+#include "surfaceInterpolate.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+defineTypeNameAndDebug(fvMotionSolverEngineMesh, 0);
+
+addToRunTimeSelectionTable(engineMesh, fvMotionSolverEngineMesh, IOobject);
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+fvMotionSolverEngineMesh::fvMotionSolverEngineMesh(const IOobject& io)
+:
+    engineMesh(io),
+    pistonLayers_("pistonLayers", dimLength, 0.0),
+    motionSolver_(*this, engineDB_.engineDict().lookup("motionSolver"))
+{
+    if (engineDB_.engineDict().found("pistonLayers"))
+    {
+        engineDB_.engineDict().lookup("pistonLayers") >> pistonLayers_;
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+fvMotionSolverEngineMesh::~fvMotionSolverEngineMesh()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void fvMotionSolverEngineMesh::move()
+{
+    scalar deltaZ = engineDB_.pistonDisplacement().value();
+    Info<< "deltaZ = " << deltaZ << endl;
+
+    // Position of the top of the static mesh layers above the piston
+    scalar pistonPlusLayers = pistonPosition_.value() + pistonLayers_.value();
+
+    motionSolver_.cellMotionU().boundaryField()[pistonIndex_] == deltaZ;
+
+    {
+        scalarField linerPoints =
+            motionSolver_.cellMotionU()
+           .boundaryField()[linerIndex_].patch().Cf().component(vector::Z);
+
+        motionSolver_.cellMotionU().boundaryField()[linerIndex_] ==
+            deltaZ*pos(deckHeight_.value() - linerPoints)
+            *(deckHeight_.value() - linerPoints)
+            /(deckHeight_.value() - pistonPlusLayers);
+    }
+
+    motionSolver_.solve();
+
+    if (engineDB_.foundObject<surfaceScalarField>("phi"))
+    {
+        surfaceScalarField& phi = 
+            const_cast<surfaceScalarField&>
+            (engineDB_.lookupObject<surfaceScalarField>("phi"));
+
+        const volScalarField& rho =
+            engineDB_.lookupObject<volScalarField>("rho");
+
+        const volVectorField& U = 
+            engineDB_.lookupObject<volVectorField>("U");
+
+        bool absolutePhi = false;
+        if (moving())
+        {
+            phi += fvc::interpolate(rho)*fvc::meshPhi(rho, U);
+            absolutePhi = true;
+        }
+
+        movePoints(motionSolver_.curPoints());
+
+        if (absolutePhi)
+        {
+            phi -= fvc::interpolate(rho)*fvc::meshPhi(rho, U);
+        }
+    }
+    else
+    {
+        movePoints(motionSolver_.curPoints());
+    }
+
+
+    pistonPosition_.value() += deltaZ;
+    scalar pistonSpeed = deltaZ/engineDB_.deltaT().value();
+
+    Info<< "clearance: " << deckHeight_.value() - pistonPosition_.value() << nl
+        << "Piston speed = " << pistonSpeed << " m/s" << endl;
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// ************************************************************************* //