Update sonicLiquidFoam to PIMPLE

applications/solvers/compressible/sonicLiquidFoam/compressibleContinuityErrs.H

@@ -1,6 +1,3 @@
-{
-#   include "rhoEqn.H"
-}
 {
     scalar sumLocalContErr =
         (sum(mag(rho - rho0 - psi*(p - p0)))/sum(rho)).value();

applications/solvers/compressible/sonicLiquidFoam/sonicLiquidFoam.C

@@ -52,11 +52,15 @@ int main(int argc, char *argv[])
     {
         Info<< "Time = " << runTime.timeName() << nl << endl;
 
-#       include "readPISOControls.H"
+#       include "readPIMPLEControls.H"
 #       include "compressibleCourantNo.H"
 
 #       include "rhoEqn.H"
 
+        // --- PIMPLE loop
+        label oCorr = 0;
+        do
+        {
             fvVectorMatrix UEqn
             (
                 fvm::ddt(rho, U)
@@ -66,13 +70,17 @@ int main(int argc, char *argv[])
 
             solve(UEqn == -fvc::grad(p));
 
-
             // --- PISO loop
-
             for (int corr = 0; corr < nCorr; corr++)
             {
-            volScalarField rUA = 1.0/UEqn.A();
+                volScalarField rAU("rAU", 1.0/UEqn.A());
-            U = rUA*UEqn.H();
+                surfaceScalarField rhorAUf
+                (
+                    "rhorAUf",
+                    fvc::interpolate(rho*rAU)
+                );
+
+                U = rAU*UEqn.H();
 
                 surfaceScalarField phid
                 (
@@ -80,7 +88,7 @@ int main(int argc, char *argv[])
                     psi*
                     (
                         (fvc::interpolate(U) & mesh.Sf())
-                  + fvc::ddtPhiCorr(rUA, rho, U, phi)
+                      + fvc::ddtPhiCorr(rAU, rho, U, phi)
                     )
                 );
 
@@ -91,19 +99,24 @@ int main(int argc, char *argv[])
                     fvm::ddt(psi, p)
                   + fvc::div(phi)
                   + fvm::div(phid, p)
-              - fvm::laplacian(rho*rUA, p)
+                  - fvm::laplacian(rhorAUf, p)
                 );
 
                 pEqn.solve();
 
                 phi += pEqn.flux();
 
+#               include "rhoEqn.H"
 #               include "compressibleContinuityErrs.H"
 
-            U -= rUA*fvc::grad(p);
+                // Correct velocity
+                U -= rAU*fvc::grad(p);
                 U.correctBoundaryConditions();
             }
+        } while (++oCorr < nOuterCorr);
 
+
+        // Correct density
         rho = rhoO + psi*p;
 
         runTime.write();
@@ -115,7 +128,7 @@ int main(int argc, char *argv[])
 
     Info<< "End\n" << endl;
 
-    return 0;
+    return(0);
 }
 
 

tutorials/compressible/sonicLiquidFoam/decompressionTank/system/fvSchemes

@@ -37,7 +37,7 @@ laplacianSchemes
 {
     default         none;
     laplacian(mu,U) Gauss linear corrected;
-    laplacian((rho*(1|A(U))),p) Gauss linear corrected;
+    laplacian(rhorAUf,p) Gauss linear corrected;
 }
 
 interpolationSchemes

tutorials/compressible/sonicLiquidFoam/decompressionTank/system/fvSolution

@@ -19,31 +19,26 @@ solvers
 {
     p
     {
-        solver          PBiCG;
+        solver          BiCGStab;
         preconditioner  DILU;
-        tolerance       1e-06;
+        minIter         1;
+        tolerance       1e-08;
         relTol          0;
     }
-
     U
     {
-        solver          PBiCG;
+        solver          BiCGStab;
         preconditioner  DILU;
-        tolerance       1e-05;
+        tolerance       1e-08;
         relTol          0;
     }
-
     rho
-    {
+    {}
-        solver          PCG;
-        preconditioner  DIC;
-        tolerance       1e-05;
-        relTol          0;
-    }
 }
 
-PISO
+PIMPLE
 {
+    nOuterCorrectors 2;
     nCorrectors      2;
     nNonOrthogonalCorrectors 0;
 }