pimpleControl: Added optional 'solveFlow' control

sprayFoam: Added support for the optional 'solveFlow' control to allow
           simulation of the spray evolution with all sub-models in a 'frozen'
           flow-field.

applications/solvers/lagrangian/sprayFoam/sprayFoam.C

@@ -75,34 +75,37 @@ int main(int argc, char *argv[])
 
         parcels.evolve();
 
-        #include "rhoEqn.H"
+        if (pimple.solveFlow())
-
-        // --- Pressure-velocity PIMPLE corrector loop
-        while (pimple.loop())
         {
-            #include "UEqn.H"
+            #include "rhoEqn.H"
-            #include "YEqn.H"
-            #include "EEqn.H"
 
-            // --- Pressure corrector loop
+            // --- Pressure-velocity PIMPLE corrector loop
-            while (pimple.correct())
+            while (pimple.loop())
             {
-                #include "pEqn.H"
+                #include "UEqn.H"
+                #include "YEqn.H"
+                #include "EEqn.H"
+
+                // --- Pressure corrector loop
+                while (pimple.correct())
+                {
+                    #include "pEqn.H"
+                }
+
+                if (pimple.turbCorr())
+                {
+                    turbulence->correct();
+                }
             }
 
-            if (pimple.turbCorr())
+            rho = thermo.rho();
+
+            if (runTime.write())
             {
-                turbulence->correct();
+                combustion->dQ()().write();
             }
         }
 
-        rho = thermo.rho();
-
-        if (runTime.write())
-        {
-            combustion->dQ()().write();
-        }
-
         Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
             << "  ClockTime = " << runTime.elapsedClockTime() << " s"
             << nl << endl;

src/finiteVolume/cfdTools/general/solutionControl/pimpleControl/pimpleControl.C

@@ -40,8 +40,9 @@ void Foam::pimpleControl::read()
 {
     solutionControl::read(false);
 
-    // Read solution controls
     const dictionary& pimpleDict = dict();
+
+    solveFlow_ = pimpleDict.lookupOrDefault<Switch>("solveFlow", true);
     nCorrPIMPLE_ = pimpleDict.lookupOrDefault<label>("nOuterCorrectors", 1);
     nCorrPISO_ = pimpleDict.lookupOrDefault<label>("nCorrectors", 1);
     turbOnFinalIterOnly_ =
@@ -123,6 +124,7 @@ bool Foam::pimpleControl::criteriaSatisfied()
 Foam::pimpleControl::pimpleControl(fvMesh& mesh, const word& dictName)
 :
     solutionControl(mesh, dictName),
+    solveFlow_(true),
     nCorrPIMPLE_(0),
     nCorrPISO_(0),
     corrPISO_(0),

src/finiteVolume/cfdTools/general/solutionControl/pimpleControl/pimpleControl.H

@@ -69,6 +69,9 @@ protected:
 
         // Solution controls
 
+            //- Flag to indicate whether to solve for the flow
+            bool solveFlow_;
+
             //- Maximum number of PIMPLE correctors
             label nCorrPIMPLE_;
 
@@ -131,22 +134,25 @@ public:
             //- PIMPLE loop
             virtual bool loop();
 
-            //- Pressure corrector loop
+            //- Pressure corrector loop control
             inline bool correct();
 
-            //- Helper function to identify when to store the intial residuals
+            //- Return true to store the intial residuals
             inline bool storeInitialResiduals() const;
 
-            //- Helper function to identify first PIMPLE (outer) iteration
+            //- Return true for first PIMPLE (outer) iteration
             inline bool firstIter() const;
 
-            //- Helper function to identify final PIMPLE (outer) iteration
+            //- Return true fore final PIMPLE (outer) iteration
             inline bool finalIter() const;
 
-            //- Helper function to identify final inner iteration
+            //- Return true for final inner iteration
             inline bool finalInnerIter() const;
 
-            //- Helper function to identify whether to solve for turbulence
+            //- Return true to solve for flow
+            inline bool solveFlow() const;
+
+            //- Return true to solve for turbulence
             inline bool turbCorr() const;
 };
 

src/finiteVolume/cfdTools/general/solutionControl/pimpleControl/pimpleControlI.H

@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -92,6 +92,12 @@ inline bool Foam::pimpleControl::finalInnerIter() const
 }
 
 
+inline bool Foam::pimpleControl::solveFlow() const
+{
+    return solveFlow_;
+}
+
+
 inline bool Foam::pimpleControl::turbCorr() const
 {
     return !turbOnFinalIterOnly_ || finalIter();