diff --git a/applications/solvers/multiphase/reactingEulerFoam/phaseSystems/phaseSystem/phaseSystem.C b/applications/solvers/multiphase/reactingEulerFoam/phaseSystems/phaseSystem/phaseSystem.C
index 19e768416..3fdb7ce78 100644
--- a/applications/solvers/multiphase/reactingEulerFoam/phaseSystems/phaseSystem/phaseSystem.C
+++ b/applications/solvers/multiphase/reactingEulerFoam/phaseSystems/phaseSystem/phaseSystem.C
@@ -28,6 +28,7 @@ License
 #include "aspectRatioModel.H"
 #include "surfaceInterpolate.H"
 #include "fvcDdt.H"
+#include "localEulerDdtScheme.H"
 
 // * * * * * * * * * * * * * * Static Data Members * * * * * * * * * * * * * //
 
@@ -359,4 +360,30 @@ bool Foam::phaseSystem::read()
 }
 
 
+Foam::tmp<Foam::volScalarField> Foam::byDt(const volScalarField& vf)
+{
+    if (fv::localEulerDdt::enabled(vf.mesh()))
+    {
+        return fv::localEulerDdt::localRDeltaT(vf.mesh())*vf;
+    }
+    else
+    {
+        return vf/vf.mesh().time().deltaT();
+    }
+}
+
+
+Foam::tmp<Foam::surfaceScalarField> Foam::byDt(const surfaceScalarField& sf)
+{
+    if (fv::localEulerDdt::enabled(sf.mesh()))
+    {
+        return fv::localEulerDdt::localRDeltaTf(sf.mesh())*sf;
+    }
+    else
+    {
+        return sf/sf.mesh().time().deltaT();
+    }
+}
+
+
 // ************************************************************************* //
diff --git a/applications/solvers/multiphase/reactingEulerFoam/phaseSystems/phaseSystem/phaseSystem.H b/applications/solvers/multiphase/reactingEulerFoam/phaseSystems/phaseSystem/phaseSystem.H
index 9c637a428..544ca53e1 100644
--- a/applications/solvers/multiphase/reactingEulerFoam/phaseSystems/phaseSystem/phaseSystem.H
+++ b/applications/solvers/multiphase/reactingEulerFoam/phaseSystems/phaseSystem/phaseSystem.H
@@ -372,6 +372,11 @@ public:
 };
 
 
+// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+
+tmp<volScalarField> byDt(const volScalarField& vf);
+tmp<surfaceScalarField> byDt(const surfaceScalarField& sf);
+
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 } // End namespace Foam
diff --git a/applications/solvers/multiphase/reactingEulerFoam/reactingMultiphaseEulerFoam/pU/pEqn.H b/applications/solvers/multiphase/reactingEulerFoam/reactingMultiphaseEulerFoam/pU/pEqn.H
index c6ec21aae..696385d7b 100644
--- a/applications/solvers/multiphase/reactingEulerFoam/reactingMultiphaseEulerFoam/pU/pEqn.H
+++ b/applications/solvers/multiphase/reactingEulerFoam/reactingMultiphaseEulerFoam/pU/pEqn.H
@@ -19,8 +19,7 @@ forAll(phases, phasei)
             1.0
            /(
                UEqns[phasei].A()
-             + max(phase.residualAlpha() - alpha, scalar(0))
-              *phase.rho()/runTime.deltaT()
+             + byDt(max(phase.residualAlpha() - alpha, scalar(0))*phase.rho())
             )
         )
     );
@@ -118,8 +117,8 @@ while (pimple.correct())
             rAUs[phasei]
            *(
                 UEqns[phasei].H()
-              + max(phase.residualAlpha() - alpha, scalar(0))
-               *phase.rho()*phase.U().oldTime()/runTime.deltaT()
+              + byDt(max(phase.residualAlpha() - alpha, scalar(0))*phase.rho())
+               *phase.U().oldTime()
             );
     }
 
@@ -207,12 +206,12 @@ while (pimple.correct())
               + phiCorrCoeff
                *fvc::interpolate
                 (
-                    alpha.oldTime()*phase.rho()().oldTime()*rAUs[phasei]
+                    byDt(alpha.oldTime()*phase.rho()().oldTime()*rAUs[phasei])
                 )
                *(
                    MRF.absolute(phase.phi().oldTime())
                  - fvc::flux(phase.U().oldTime())
-                )/runTime.deltaT()
+                )
               - phigFs[phasei]
             )
         );
diff --git a/applications/solvers/multiphase/reactingEulerFoam/reactingMultiphaseEulerFoam/pUf/pEqn.H b/applications/solvers/multiphase/reactingEulerFoam/reactingMultiphaseEulerFoam/pUf/pEqn.H
index f2aa61cdc..e920119b9 100644
--- a/applications/solvers/multiphase/reactingEulerFoam/reactingMultiphaseEulerFoam/pUf/pEqn.H
+++ b/applications/solvers/multiphase/reactingEulerFoam/reactingMultiphaseEulerFoam/pUf/pEqn.H
@@ -32,8 +32,8 @@ forAll(phases, phasei)
             IOobject::groupName("rAUf", phase.name()),
             1.0
            /(
-                fvc::interpolate(UEqns[phasei].A())
-              + (alphaRho0fs[phasei] + fluid.Vmf(phase))/runTime.deltaT()
+                byDt(alphaRho0fs[phasei] + fluid.Vmf(phase))
+              + fvc::interpolate(UEqns[phasei].A())
               + fluid.Kdf(phase)
             )
         )
@@ -176,7 +176,7 @@ while (pimple.correct())
                *(
                     fvc::flux(UEqns[phasei].H())
                   + alphaRho0fs[phasei]
-                   *MRF.absolute(phase.phi().oldTime())/runTime.deltaT()
+                   *byDt(MRF.absolute(phase.phi().oldTime()))
                 )
               - phigFs[phasei]
             )
@@ -231,8 +231,7 @@ while (pimple.correct())
                     phiHbyAs[phasei] +=
                         rAUfs[phasei]
                        *(
-                            Vmf*MRF.absolute(phase1->phi()().oldTime())
-                           /runTime.deltaT()
+                            Vmf*byDt(MRF.absolute(phase1->phi()().oldTime()))
                           + Vmf*ddtPhis[phase2->index()]
                         );
                 }
diff --git a/applications/solvers/multiphase/reactingEulerFoam/reactingTwoPhaseEulerFoam/reactingTwoPhaseEulerFoam.C b/applications/solvers/multiphase/reactingEulerFoam/reactingTwoPhaseEulerFoam/reactingTwoPhaseEulerFoam.C
index 47b6fe638..90f252f82 100644
--- a/applications/solvers/multiphase/reactingEulerFoam/reactingTwoPhaseEulerFoam/reactingTwoPhaseEulerFoam.C
+++ b/applications/solvers/multiphase/reactingEulerFoam/reactingTwoPhaseEulerFoam/reactingTwoPhaseEulerFoam.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -40,34 +40,6 @@ Description
 #include "localEulerDdtScheme.H"
 #include "fvcSmooth.H"
 
-namespace Foam
-{
-    tmp<volScalarField> byDt(const volScalarField& vf)
-    {
-        if (fv::localEulerDdt::enabled(vf.mesh()))
-        {
-            return fv::localEulerDdt::localRDeltaT(vf.mesh())*vf;
-        }
-        else
-        {
-            return vf/vf.mesh().time().deltaT();
-        }
-    }
-
-    tmp<surfaceScalarField> byDt(const surfaceScalarField& sf)
-    {
-        if (fv::localEulerDdt::enabled(sf.mesh()))
-        {
-            return fv::localEulerDdt::localRDeltaTf(sf.mesh())*sf;
-        }
-        else
-        {
-            return sf/sf.mesh().time().deltaT();
-        }
-    }
-}
-
-
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
 
 int main(int argc, char *argv[])