ENH: setTimeStep: new functionObject

src/postProcessing/functionObjects/utilities/Make/files

@@ -36,4 +36,6 @@ yPlusLES/yPlusLESFunctionObject.C
 yPlusRAS/yPlusRAS.C
 yPlusRAS/yPlusRASFunctionObject.C
 
+setTimeStep/setTimeStepFunctionObject.C
+
 LIB = $(FOAM_LIBBIN)/libutilityFunctionObjects

src/postProcessing/functionObjects/utilities/setTimeStep/setTimeStepFunctionObject.C

@@ -0,0 +1,152 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 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/>.
+
+\*---------------------------------------------------------------------------*/
+
+#include "setTimeStepFunctionObject.H"
+#include "addToRunTimeSelectionTable.H"
+
+// * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
+
+namespace Foam
+{
+    defineTypeNameAndDebug(setTimeStepFunctionObject, 0);
+
+    addToRunTimeSelectionTable
+    (
+        functionObject,
+        setTimeStepFunctionObject,
+        dictionary
+    );
+}
+
+
+// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
+
+Foam::setTimeStepFunctionObject::setTimeStepFunctionObject
+(
+    const word& name,
+    const Time& runTime,
+    const dictionary& dict
+)
+:
+    functionObject(name),
+    time_(runTime),
+    enabled_(true)
+{
+    read(dict);
+}
+
+
+// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
+
+void Foam::setTimeStepFunctionObject::on()
+{
+    enabled_ = true;
+}
+
+
+void Foam::setTimeStepFunctionObject::off()
+{
+    enabled_ = false;
+}
+
+
+bool Foam::setTimeStepFunctionObject::start()
+{
+    return true;
+}
+
+
+bool Foam::setTimeStepFunctionObject::execute(const bool forceWrite)
+{
+    return true;
+}
+
+
+bool Foam::setTimeStepFunctionObject::end()
+{
+    return true;
+}
+
+
+bool Foam::setTimeStepFunctionObject::timeSet()
+{
+    return true;
+}
+
+
+bool Foam::setTimeStepFunctionObject::adjustTimeStep()
+{
+    if (enabled())
+    {
+        // Wanted timestep
+        scalar newDeltaT = timeStepPtr_().value(time_.timeOutputValue());
+
+        const_cast<Time&>(time()).setDeltaT(newDeltaT, false);
+
+        return true;
+    }
+    else
+    {
+        return false;
+    }
+}
+
+
+bool Foam::setTimeStepFunctionObject::read(const dictionary& dict)
+{
+    enabled_ = dict.lookupOrDefault("enabled", true);
+
+    if (enabled_)
+    {
+        timeStepPtr_ = DataEntry<scalar>::New("deltaT", dict);
+
+        // Check that time has adjustTimeStep
+        const dictionary& controlDict = time_.controlDict();
+
+        Switch adjust;
+        if
+        (
+            !controlDict.readIfPresent<Switch>("adjustTimeStep", adjust)
+         || !adjust
+        )
+        {
+            FatalIOErrorIn("setTimeStep::read(const dictionary&)", dict)
+                << "Need to have 'adjustTimeStep' true to enable external"
+                << " timestep control" << exit(FatalIOError);
+        }
+    }
+    return true;
+}
+
+
+void Foam::setTimeStepFunctionObject::updateMesh(const mapPolyMesh& mpm)
+{}
+
+
+void Foam::setTimeStepFunctionObject::movePoints(const polyMesh& mesh)
+{}
+
+
+// ************************************************************************* //

src/postProcessing/functionObjects/utilities/setTimeStep/setTimeStepFunctionObject.H

@@ -0,0 +1,159 @@
+/*---------------------------------------------------------------------------*\
+  =========                 |
+  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
+   \\    /   O peration     |
+    \\  /    A nd           | Copyright (C) 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/>.
+
+Class
+    Foam::setTimeStepFunctionObject
+
+Group
+    grpUtilitiesFunctionObjects
+
+Description
+    Overrides the timeStep. Can only be used with
+    solvers with adjustTimeStep control (e.g. pimpleFoam). Makes no attempt
+    to cooperate with other timeStep 'controllers' (maxCo, other
+    functionObjects). Supports 'enabled' flag but none of othe other ones
+    'timeStart', 'timeEnd', 'outputControl' etc.
+
+SourceFiles
+    setTimeStepFunctionObject.C
+
+\*---------------------------------------------------------------------------*/
+
+#ifndef setTimeStepFunctionObject_H
+#define setTimeStepFunctionObject_H
+
+#include "functionObject.H"
+#include "dictionary.H"
+#include "DataEntry.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+namespace Foam
+{
+
+/*---------------------------------------------------------------------------*\
+                    Class setTimeStepFunctionObject Declaration
+\*---------------------------------------------------------------------------*/
+
+class setTimeStepFunctionObject
+:
+    public functionObject
+{
+    // Private data
+
+        //- Reference to the time database
+        const Time& time_;
+
+
+        // Optional user inputs
+
+            //- Switch for the execution - defaults to 'yes/on'
+            bool enabled_;
+
+            //- Time step
+            autoPtr<DataEntry<scalar> > timeStepPtr_;
+
+
+        //- Disallow default bitwise copy construct
+        setTimeStepFunctionObject(const setTimeStepFunctionObject&);
+
+        //- Disallow default bitwise assignment
+        void operator=(const setTimeStepFunctionObject&);
+
+
+public:
+    //- Runtime type information
+    TypeName("setTimeStep");
+
+    // Constructors
+
+        //- Construct from components
+        setTimeStepFunctionObject
+        (
+            const word& name,
+            const Time& runTime,
+            const dictionary& dict
+        );
+
+
+    // Member Functions
+
+        // Access
+
+            //- Return time database
+            virtual const Time& time() const
+            {
+                return time_;
+            }
+
+            //- Return the enabled flag
+            virtual bool enabled() const
+            {
+                return enabled_;
+            }
+
+
+        // Function object control
+
+            //- Switch the function object on
+            virtual void on();
+
+            //- Switch the function object off
+            virtual void off();
+
+
+            //- Called at the start of the time-loop
+            virtual bool start();
+
+            //- Called at each ++ or += of the time-loop
+            virtual bool execute(const bool forceWrite);
+
+            //- Called when Time::run() determines that the time-loop exits
+            virtual bool end();
+
+            //- Called when time was set at the end of the Time::operator++
+            virtual bool timeSet();
+
+            //- Called at the end of Time::adjustDeltaT() if adjustTime is true
+            virtual bool adjustTimeStep();
+
+            //- Read and set the function object if its data have changed
+            virtual bool read(const dictionary&);
+
+            //- Update for changes of mesh
+            virtual void updateMesh(const mapPolyMesh& mpm);
+
+            //- Update for changes of mesh
+            virtual void movePoints(const polyMesh& mesh);
+
+};
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+} // End namespace Foam
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+#endif
+
+// ************************************************************************* //