Add the OpenFOAM source tree

2025-12-08 06:57:46 +00:00 · 2014-12-10 22:40:10 +00:00
parent ee487c860d
commit 446e5777f0
13379 changed files with 3983377 additions and 0 deletions
--- a/src/postProcessing/foamCalcFunctions/field/randomise/writeRandomField.C
+++ b/src/postProcessing/foamCalcFunctions/field/randomise/writeRandomField.C
@ -0,0 +1,72 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 2011-2013 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/>.
+
+\*---------------------------------------------------------------------------*/
+
+template<class Type>
+void Foam::calcTypes::randomise::writeRandomField
+(
+    const IOobject& header,
+    const scalar pertMag,
+    Random& rand,
+    const fvMesh& mesh,
+    bool& processed
+)
+{
+    typedef GeometricField<Type, fvPatchField, volMesh> fieldType;
+
+    if (header.headerClassName() == fieldType::typeName)
+    {
+        Info<< "    Reading " << header.name() << endl;
+        fieldType field(header, mesh);
+
+        forAll(field, cellI)
+        {
+            Type rndPert;
+            rand.randomise(rndPert);
+            rndPert = 2.0*rndPert - pTraits<Type>::one;
+            rndPert /= mag(rndPert);
+            field[cellI] += pertMag*rndPert;
+        }
+
+        fieldType randomisedField
+        (
+            IOobject
+            (
+                header.name() + "Random",
+                mesh.time().timeName(),
+                mesh,
+                IOobject::NO_READ
+            ),
+            field
+        );
+
+        Info<< "    Writing " << header.name() << "Random" << endl;
+        randomisedField.write();
+
+        processed = true;
+    }
+}
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //