CourantNo.H
Go to the documentation of this file.
1 /*---------------------------------------------------------------------------*\
2  ========= |
3  \\ / F ield | OpenFOAM: The Open Source CFD Toolbox
4  \\ / O peration |
5  \\ / A nd | Copyright (C) 2011 OpenFOAM Foundation
6  \\/ M anipulation |
7 -------------------------------------------------------------------------------
8 License
9  This file is part of OpenFOAM.
10 
11  OpenFOAM is free software: you can redistribute it and/or modify it
12  under the terms of the GNU General Public License as published by
13  the Free Software Foundation, either version 3 of the License, or
14  (at your option) any later version.
15 
16  OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
17  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
18  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19  for more details.
20 
21  You should have received a copy of the GNU General Public License
22  along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
23 
24 Global
25  CourantNo
26 
27 Description
28  Calculates and outputs the maximum Courant Number.
29 
30 \*---------------------------------------------------------------------------*/
31 
32 
33 scalar CoNum = 0.0;
34 scalar meanCoNum = 0.0;
35 scalar waveCoNum = 0.0;
36 
37 if (mesh.nInternalFaces())
38 {
39  scalarField sumPhi
40  (
42  / h.internalField()
43  );
44 
45  CoNum = 0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();
46 
47  meanCoNum =
48  0.5*(gSum(sumPhi)/gSum(mesh.V().field()))*runTime.deltaTValue();
49 
50  // Gravity wave Courant number
51  waveCoNum = 0.25*gMax
52  (
54  (
55  fvc::interpolate(sqrt(h))*mesh.magSf()
56  )().internalField()/mesh.V().field()
57  )*sqrt(magg).value()*runTime.deltaTValue();
58 }
59 
60 Info<< "Courant number mean: " << meanCoNum
61  << " max: " << CoNum << endl;
62 
63 Info<< "Gravity wave Courant number max: " << waveCoNum
64  << endl;
65 
66 
67 // ************************************************************************* //
dimensionedScalar sqrt(const dimensionedScalar &ds)
dimensioned< scalar > mag(const dimensioned< Type > &)
scalar CoNum
Definition: CourantNo.H:29
tmp< GeometricField< Type, fvPatchField, volMesh > > surfaceSum(const GeometricField< Type, fvsPatchField, surfaceMesh > &ssf)
scalar meanCoNum
Definition: CourantNo.H:30
messageStream Info
tmp< surfaceScalarField > interpolate(const RhoType &rho)
dynamicFvMesh & mesh
Type gSum(const FieldField< Field, Type > &f)
Ostream & endl(Ostream &os)
Add newline and flush stream.
Definition: Ostream.H:251
scalar waveCoNum
Definition: CourantNo.H:32
surfaceScalarField & phi
volScalarField scalarField(fieldObject, mesh)
Type gMax(const FieldField< Field, Type > &f)
const dimensionedScalar h
Planck constant.
Definition: createFields.H:6
conserve internalField()+
const Type & value() const
Return const reference to value.