diff --git a/applications/solvers/combustion/reactingFoam/LTSReactingFoam/LTSReactingFoam.C b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/LTSReactingFoam.C
new file mode 100644
index 0000000000000000000000000000000000000000..0b34210865f87a91c78d489ea0a9dd71d83b448f
--- /dev/null
+++ b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/LTSReactingFoam.C
@@ -0,0 +1,107 @@
+/*---------------------------------------------------------------------------*\
+ ========= |
+ \\ / 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/>.
+
+Application
+ LTSReactingFoam
+
+Description
+ Local time stepping (LTS) solver for steady, compressible, laminar or
+ turbulent reacting and non-reacting flow.
+
+\*---------------------------------------------------------------------------*/
+
+#include "fvCFD.H"
+#include "turbulenceModel.H"
+#include "psiCombustionModel.H"
+#include "multivariateScheme.H"
+#include "pimpleControl.H"
+#include "fvIOoptionList.H"
+#include "fvcSmooth.H"
+
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+int main(int argc, char *argv[])
+{
+ #include "setRootCase.H"
+ #include "createTime.H"
+ #include "createMesh.H"
+
+ pimpleControl pimple(mesh);
+
+ #include "readGravitationalAcceleration.H"
+ #include "createFields.H"
+ #include "createFvOptions.H"
+ #include "initContinuityErrs.H"
+ #include "readTimeControls.H"
+ #include "compressibleCourantNo.H"
+ #include "setInitialrDeltaT.H"
+
+ // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+ Info<< "\nStarting time loop\n" << endl;
+
+ while (runTime.run())
+ {
+ #include "readTimeControls.H"
+
+ runTime++;
+
+ Info<< "Time = " << runTime.timeName() << nl << endl;
+
+ #include "setrDeltaT.H"
+
+ #include "rhoEqn.H"
+
+ // --- Pressure-velocity PIMPLE corrector loop
+ while (pimple.loop())
+ {
+ #include "UEqn.H"
+ #include "YEqn.H"
+ #include "EEqn.H"
+
+ // --- Pressure corrector loop
+ while (pimple.correct())
+ {
+ #include "pEqn.H"
+ }
+
+ if (pimple.turbCorr())
+ {
+ turbulence->correct();
+ }
+ }
+
+ runTime.write();
+
+ Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
+ << " ClockTime = " << runTime.elapsedClockTime() << " s"
+ << nl << endl;
+ }
+
+ Info<< "End\n" << endl;
+
+ return(0);
+}
+
+
+// ************************************************************************* //
diff --git a/applications/solvers/combustion/reactingFoam/LTSReactingFoam/Make/files b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/Make/files
new file mode 100644
index 0000000000000000000000000000000000000000..0b81e7a03247e0f362b71cc12cee85fd0c9f134e
--- /dev/null
+++ b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/Make/files
@@ -0,0 +1,3 @@
+LTSReactingFoam.C
+
+EXE = $(FOAM_APPBIN)/LTSReactingFoam
diff --git a/applications/solvers/combustion/reactingFoam/LTSReactingFoam/Make/options b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/Make/options
new file mode 100644
index 0000000000000000000000000000000000000000..abac9d96a4c1da64039dd6e1c09b4b6e7ad4fbcc
--- /dev/null
+++ b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/Make/options
@@ -0,0 +1,28 @@
+EXE_INC = -ggdb3 \
+ -I.. \
+ -I$(LIB_SRC)/finiteVolume/lnInclude \
+ -I$(LIB_SRC)/fvOptions/lnInclude \
+ -I$(LIB_SRC)/meshTools/lnInclude \
+ -I$(LIB_SRC)/sampling/lnInclude \
+ -I$(LIB_SRC)/turbulenceModels/compressible/turbulenceModel \
+ -I$(LIB_SRC)/thermophysicalModels/specie/lnInclude \
+ -I$(LIB_SRC)/thermophysicalModels/reactionThermo/lnInclude \
+ -I$(LIB_SRC)/thermophysicalModels/basic/lnInclude \
+ -I$(LIB_SRC)/thermophysicalModels/chemistryModel/lnInclude \
+ -I$(LIB_SRC)/ODE/lnInclude \
+ -I$(LIB_SRC)/combustionModels/lnInclude
+
+EXE_LIBS = \
+ -lfiniteVolume \
+ -lfvOptions \
+ -lmeshTools \
+ -lsampling \
+ -lcompressibleTurbulenceModel \
+ -lcompressibleRASModels \
+ -lcompressibleLESModels \
+ -lreactionThermophysicalModels \
+ -lspecie \
+ -lfluidThermophysicalModels \
+ -lchemistryModel \
+ -lODE \
+ -lcombustionModels
diff --git a/applications/solvers/combustion/reactingFoam/LTSReactingFoam/readTimeControls.H b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/readTimeControls.H
new file mode 100644
index 0000000000000000000000000000000000000000..2a6dd6f3456c2d7659e05ba931e63cf18b9e790b
--- /dev/null
+++ b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/readTimeControls.H
@@ -0,0 +1,48 @@
+/*---------------------------------------------------------------------------*\
+ ========= |
+ \\ / 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/>.
+
+\*---------------------------------------------------------------------------*/
+
+// Maximum flow Courant number
+scalar maxCo(readScalar(pimple.dict().lookup("maxCo")));
+
+// Maximum time scale
+scalar maxDeltaT(pimple.dict().lookupOrDefault<scalar>("maxDeltaT", GREAT));
+
+// Smoothing parameter (0-1) when smoothing iterations > 0
+scalar rDeltaTSmoothingCoeff
+(
+ pimple.dict().lookupOrDefault<scalar>("rDeltaTSmoothingCoeff", 0.1)
+);
+
+// Damping coefficient (1-0)
+scalar rDeltaTDampingCoeff
+(
+ pimple.dict().lookupOrDefault<scalar>("rDeltaTDampingCoeff", 1.0)
+);
+
+// Maximum change in cell temperature per iteration (relative to previous value)
+scalar alphaTemp(pimple.dict().lookupOrDefault("alphaTemp", 0.5));
+
+
+// ************************************************************************* //
diff --git a/applications/solvers/combustion/reactingFoam/LTSReactingFoam/setInitialrDeltaT.H b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/setInitialrDeltaT.H
new file mode 100644
index 0000000000000000000000000000000000000000..c445eaee71e69d203e425df155dfa058ea71a170
--- /dev/null
+++ b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/setInitialrDeltaT.H
@@ -0,0 +1,14 @@
+ volScalarField rDeltaT
+ (
+ IOobject
+ (
+ "rDeltaT",
+ runTime.timeName(),
+ mesh,
+ IOobject::READ_IF_PRESENT,
+ IOobject::AUTO_WRITE
+ ),
+ mesh,
+ dimensionedScalar("one", dimless/dimTime, 1),
+ zeroGradientFvPatchScalarField::typeName
+ );
diff --git a/applications/solvers/combustion/reactingFoam/LTSReactingFoam/setrDeltaT.H b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/setrDeltaT.H
new file mode 100644
index 0000000000000000000000000000000000000000..ce1caf1de5eec3efdde8b9365ad0e96a4b866dbe
--- /dev/null
+++ b/applications/solvers/combustion/reactingFoam/LTSReactingFoam/setrDeltaT.H
@@ -0,0 +1,97 @@
+/*---------------------------------------------------------------------------*\
+ ========= |
+ \\ / 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/>.
+
+\*---------------------------------------------------------------------------*/
+
+{
+ Info<< "Time scales min/max:" << endl;
+
+ // Cache old reciprocal time scale field
+ volScalarField rDeltaT0("rDeltaT0", rDeltaT);
+
+ // Flow time scale
+ {
+ rDeltaT.dimensionedInternalField() =
+ (
+ fvc::surfaceSum(mag(phi))().dimensionedInternalField()
+ /((2*maxCo)*mesh.V()*rho.dimensionedInternalField())
+ );
+
+ // Limit the largest time scale
+ rDeltaT.max(1/maxDeltaT);
+
+ Info<< " Flow = "
+ << gMin(1/rDeltaT.internalField()) << ", "
+ << gMax(1/rDeltaT.internalField()) << endl;
+ }
+
+ // Reaction source time scale
+ if (alphaTemp < 1.0)
+ {
+ volScalarField::DimensionedInternalField rDeltaTT
+ (
+ mag(reaction->Sh())/(alphaTemp*rho*thermo.Cp()*T)
+ );
+
+ Info<< " Temperature = "
+ << gMin(1/(rDeltaTT.field() + VSMALL)) << ", "
+ << gMax(1/(rDeltaTT.field() + VSMALL)) << endl;
+
+ rDeltaT.dimensionedInternalField() = max
+ (
+ rDeltaT.dimensionedInternalField(),
+ rDeltaTT
+ );
+ }
+
+ // Update tho boundary values of the reciprocal time-step
+ rDeltaT.correctBoundaryConditions();
+
+ // Spatially smooth the time scale field
+ if (rDeltaTSmoothingCoeff < 1.0)
+ {
+ fvc::smooth(rDeltaT, rDeltaTSmoothingCoeff);
+ }
+
+ // Limit rate of change of time scale
+ // - reduce as much as required
+ // - only increase at a fraction of old time scale
+ if
+ (
+ rDeltaTDampingCoeff < 1.0
+ && runTime.timeIndex() > runTime.startTimeIndex() + 1
+ )
+ {
+ rDeltaT = max
+ (
+ rDeltaT,
+ (scalar(1.0) - rDeltaTDampingCoeff)*rDeltaT0
+ );
+ }
+
+ Info<< " Overall = "
+ << gMin(1/rDeltaT.internalField())
+ << ", " << gMax(1/rDeltaT.internalField()) << endl;
+}
+
+// ************************************************************************* //