compressibleCourantNo.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 | www.openfoam.com
6  \\/ M anipulation |
7 -------------------------------------------------------------------------------
8  Copyright (C) 2011-2017 OpenFOAM Foundation
9 -------------------------------------------------------------------------------
10 License
11  This file is part of OpenFOAM.
12 
13  OpenFOAM is free software: you can redistribute it and/or modify it
14  under the terms of the GNU General Public License as published by
15  the Free Software Foundation, either version 3 of the License, or
16  (at your option) any later version.
17 
18  OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
19  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
20  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
21  for more details.
22 
23  You should have received a copy of the GNU General Public License
24  along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
25 
26 Global
27  CourantNo
28 
29 Description
30  Calculates and outputs the mean and maximum Courant Numbers.
31 
32 \*---------------------------------------------------------------------------*/
33 
34 scalar CoNum = 0.0;
35 scalar meanCoNum = 0.0;
36 
37 {
38  scalarField sumPhi
39  (
40  fvc::surfaceSum(mag(phi))().primitiveField()/rho.primitiveField()
41  );
42 
43  CoNum = 0.5*gMax(sumPhi/mesh.V().field())*runTime.deltaTValue();
44 
45  meanCoNum =
46  0.5*(gSum(sumPhi)/gSum(mesh.V().field()))*runTime.deltaTValue();
47 }
48 
49 Info<< "Courant Number mean: " << meanCoNum
50  << " max: " << CoNum << endl;
51 
52 // ************************************************************************* //
runTime
engineTime & runTime
Definition: createEngineTime.H:13
Foam::fvc::surfaceSum
tmp< GeometricField< Type, fvPatchField, volMesh > > surfaceSum(const GeometricField< Type, fvsPatchField, surfaceMesh > &ssf)
Definition: fvcSurfaceIntegrate.C:135
Foam::scalarField
Field< scalar > scalarField
Specialisation of Field<T> for scalar.
Definition: primitiveFieldsFwd.H:52
Foam::endl
Ostream & endl(Ostream &os)
Add newline and flush stream.
Definition: Ostream.H:369
Foam::gSum
Type gSum(const FieldField< Field, Type > &f)
Definition: FieldFieldFunctions.C:594
rho
rho
Definition: readInitialConditions.H:88
Foam::Info
messageStream Info
Information stream (stdout output on master, null elsewhere)
phi
surfaceScalarField & phi
Definition: setRegionFluidFields.H:8
mesh
dynamicFvMesh & mesh
Definition: createDynamicFvMesh.H:6
CoNum
scalar CoNum
Definition: compressibleCourantNo.H:31
Foam::mag
dimensioned< typename typeOfMag< Type >::type > mag(const dimensioned< Type > &dt)
meanCoNum
scalar meanCoNum
Definition: compressibleCourantNo.H:32
Foam::gMax
Type gMax(const FieldField< Field, Type > &f)
Definition: FieldFieldFunctions.C:592