Updated version of buoyantBoussinesqSimpleFoam

applications/solvers/heatTransfer/buoyantBoussinesqSimpleFoam/TEqn.H

@@ -8,12 +8,11 @@
     fvScalarMatrix TEqn
     (
         fvm::div(phi, T)
-      - fvm::Sp(fvc::div(phi), T)
+      + fvm::SuSp(-fvc::div(phi), T)
       - fvm::laplacian(kappaEff, T)
     );
 
     TEqn.relax();
-
     TEqn.solve();
 
     rhok = 1.0 - beta*(T - TRef);

applications/solvers/heatTransfer/buoyantBoussinesqSimpleFoam/UEqn.H

@@ -6,17 +6,10 @@
       + turbulence->divDevReff()
     );
 
-    UEqn().relax();
-
     solve
     (
-        UEqn()
+        relax(UEqn())
       ==
-        fvc::reconstruct
+       -fvc::grad(p)
-        (
+      + fvc::reconstruct(fvc::interpolate(rhok)*(g & mesh.Sf()))
-            (
-                fvc::interpolate(rhok)*(g & mesh.Sf())
-              - fvc::snGrad(p)*mesh.magSf()
-            )
-        )
     );

applications/solvers/heatTransfer/buoyantBoussinesqSimpleFoam/buoyantBoussinesqSimpleFoam.C

@@ -74,8 +74,8 @@ int main(int argc, char *argv[])
 
         // Pressure-velocity SIMPLE corrector
         {
-            #include "UEqn.H"
 #           include "TEqn.H"
+#           include "UEqn.H"
 #           include "pEqn.H"
         }
 

applications/solvers/heatTransfer/buoyantBoussinesqSimpleFoam/pEqn.H

@@ -1,22 +1,31 @@
 {
-    volScalarField rUA("rUA", 1.0/UEqn().A());
+    p.boundaryField().updateCoeffs();
-    surfaceScalarField rUAf("(1|A(U))", fvc::interpolate(rUA));
 
-    U = rUA*UEqn().H();
+    volScalarField rAU("rAU", 1.0/UEqn().A());
+    surfaceScalarField rAUf("(1|A(U))", fvc::interpolate(rAU));
+
+    U = rAU*UEqn().H();
     UEqn.clear();
 
-    phi = fvc::interpolate(U) & mesh.Sf();
+    simple.calcSteadyConsistentFlux(phi, U);
     adjustPhi(phi, U, p);
 
     surfaceScalarField buoyancyPhi =
-        rUAf*fvc::interpolate(rhok)*(g & mesh.Sf());
+        rAUf*fvc::interpolate(rhok)*(g & mesh.Sf());
     phi += buoyancyPhi;
 
     while (simple.correctNonOrthogonal())
     {
         fvScalarMatrix pEqn
         (
-            fvm::laplacian(rUAf, p) == fvc::div(phi)
+            fvm::laplacian
+            (
+                rAUf/simple.aCoeff(U.name()),
+                p,
+                "laplacian(rAU," + p.name() + ')'
+            )
+         ==
+            fvc::div(phi)
         );
 
         pEqn.setReference(pRefCell, pRefValue);
@@ -27,16 +36,19 @@
         {
             // Calculate the conservative fluxes
             phi -= pEqn.flux();
+        }
+
+        // U += rAU*fvc::reconstruct((buoyancyPhi - pEqn.flux())/rAUf);
+        // U.correctBoundaryConditions();
+    }
+
+#   include "continuityErrs.H"
 
     // Explicitly relax pressure for momentum corrector
     p.relax();
 
     // Correct the momentum source with the pressure gradient flux
     // calculated from the relaxed pressure
-            U += rUA*fvc::reconstruct((buoyancyPhi - pEqn.flux())/rUAf);
+    U += rAU*(fvc::reconstruct(buoyancyPhi/rAUf) - fvc::grad(p));
     U.correctBoundaryConditions();
 }
-    }
-
-    #include "continuityErrs.H"
-}