mirror of
https://develop.openfoam.com/Development/openfoam.git
synced 2025-12-28 03:37:59 +00:00
106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
/*---------------------------------------------------------------------------*\
|
|
========= |
|
|
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
|
|
\\ / O peration |
|
|
\\ / A nd | Copyright (C) 2013-2016 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/>.
|
|
|
|
Class
|
|
Foam::functionObjects::Q
|
|
|
|
Group
|
|
grpUtilitiesFunctionObjects
|
|
|
|
Description
|
|
This function object calculates and outputs the second invariant of the
|
|
velocity gradient tensor [1/s^2].
|
|
|
|
\f[
|
|
Q = 0.5(sqr(tr(\nabla U)) - tr(((\nabla U) \cdot (\nabla U))))
|
|
\f]
|
|
|
|
SeeAlso
|
|
Foam::functionObjects::fieldExpression
|
|
Foam::functionObjects::fvMeshFunctionObject
|
|
|
|
SourceFiles
|
|
Q.C
|
|
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
#ifndef functionObjects_Q_H
|
|
#define functionObjects_Q_H
|
|
|
|
#include "fieldExpression.H"
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
namespace Foam
|
|
{
|
|
namespace functionObjects
|
|
{
|
|
|
|
/*---------------------------------------------------------------------------*\
|
|
Class Q Declaration
|
|
\*---------------------------------------------------------------------------*/
|
|
|
|
class Q
|
|
:
|
|
public fieldExpression
|
|
{
|
|
|
|
public:
|
|
|
|
//- Runtime type information
|
|
TypeName("Q");
|
|
|
|
|
|
// Constructors
|
|
|
|
//- Construct from Time and dictionary
|
|
Q
|
|
(
|
|
const word& name,
|
|
const Time& runTime,
|
|
const dictionary& dict
|
|
);
|
|
|
|
|
|
//- Destructor
|
|
virtual ~Q();
|
|
|
|
|
|
// Member Functions
|
|
|
|
//- Calculate the Q field
|
|
virtual bool execute(const bool postProcess = false);
|
|
};
|
|
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
} // End namespace functionObjects
|
|
} // End namespace Foam
|
|
|
|
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
|
|
|
|
#endif
|
|
|
|
// ************************************************************************* //
|