timeStep: New functionObject which writes the timeStep at each time

which can be viewed during the run with foamMonitor.

Patch contributed by Institute of Fluid Dynamics,
Helmholtz-Zentrum Dresden - Rossendorf (HZDR)

src/functionObjects/utilities/Make/files

@@ -1,6 +1,7 @@
 codedFunctionObject/codedFunctionObject.C
 residuals/residuals.C
 timeActivatedFileUpdate/timeActivatedFileUpdate.C
+timeStep/timeStepFunctionObject.C
 setTimeStep/setTimeStepFunctionObject.C
 systemCall/systemCall.C
 stopAt/stopAt.C

src/functionObjects/utilities/timeStep/timeStepFunctionObject.C

@@ -0,0 +1,118 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2020 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/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "timeStepFunctionObject.H"
+#include "Time.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace functionObjects
+{
+    defineTypeNameAndDebug(timeStep, 0);
+
+    addToRunTimeSelectionTable
+    (
+        functionObject,
+        timeStep,
+        dictionary
+    );
+}
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::functionObjects::timeStep::timeStep
+(
+    const word& name,
+    const Time& runTime,
+    const dictionary& dict
+)
+:
+    regionFunctionObject(name, runTime, dict),
+    logFiles(obr_, name)
+{
+    read(dict);
+    resetName(typeName);
+}
+
+
+// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //
+
+Foam::functionObjects::timeStep::~timeStep()
+{}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+bool Foam::functionObjects::timeStep::read(const dictionary& dict)
+{
+    functionObject::read(dict);
+
+    return true;
+}
+
+
+void Foam::functionObjects::timeStep::writeFileHeader(const label i)
+{
+    if (Pstream::master())
+    {
+        writeHeader(file(), "Time step");
+        writeCommented(file(), "Time");
+
+        file() << tab << "deltaT";
+
+        file() << endl;
+    }
+}
+
+
+bool Foam::functionObjects::timeStep::execute()
+{
+    return true;
+}
+
+
+bool Foam::functionObjects::timeStep::write()
+{
+    logFiles::write();
+
+    if (Pstream::master())
+    {
+        writeTime(file());
+
+        file() << tab << obr_.time().deltaTValue();
+
+        file() << endl;
+    }
+
+    return true;
+}
+
+
+// ************************************************************************* //

src/functionObjects/utilities/timeStep/timeStepFunctionObject.H

@@ -0,0 +1,135 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     | Website:  https://openfoam.org
+    \\  /    A nd           | Copyright (C) 2020 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::timeStep
+
+Description
+    Writes the time step
+
+    Example of function object specification:
+    \verbatim
+    timeStep
+    {
+        type           timeStep;
+        writeControl   timeStep;
+        writeInterval  1;
+    }
+    \endverbatim
+
+    Output data is written to the dir postProcessing/timeStep/\<timeDir\>/
+
+See also
+    Foam::functionObject
+    Foam::functionObjects::regionFunctionObject
+    Foam::functionObjects::logFiles
+
+SourceFiles
+    timeStep.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef timeStepFunctionObject_H
+#define timeStepFunctionObject_H
+
+#include "regionFunctionObject.H"
+#include "logFiles.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+namespace functionObjects
+{
+
+/*---------------------------------------------------------------------------*\
+                          Class timeStep Declaration
+\*---------------------------------------------------------------------------*/
+
+class timeStep
+:
+    public regionFunctionObject,
+    public logFiles
+{
+
+protected:
+
+    // Protected Member Functions
+
+        //- Output file header information
+        virtual void writeFileHeader(const label i);
+
+
+public:
+
+    //- Runtime type information
+    TypeName("timeStep");
+
+
+    // Constructors
+
+        //- Construct from Time and dictionary
+        timeStep
+        (
+            const word& name,
+            const Time& runTime,
+            const dictionary& dict
+        );
+
+        //- Disallow default bitwise copy construction
+        timeStep(const timeStep&) = delete;
+
+
+    //- Destructor
+    virtual ~timeStep();
+
+
+    // Member Functions
+
+        //- Read the controls
+        virtual bool read(const dictionary&);
+
+        //- Execute, currently does nothing
+        virtual bool execute();
+
+        //- Write the time step value
+        virtual bool write();
+
+
+    // Member Operators
+
+        //- Disallow default bitwise assignment
+        void operator=(const timeStep&) = delete;
+};
+
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace functionObjects
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //