different solvers

openfoam2012/freeCylinderFlow/system/fvSolution

@@ -19,13 +19,18 @@ solvers
 {
     p_rgh
     {
+        // from tubeBundle
+        /* solver           GAMG;
+        tolerance        1e-7;
+        relTol           0.01;
+
+        smoother         DICGaussSeidel; */
         solver          PCG;
         preconditioner
         {
             preconditioner GAMG;
             smoother        DIC;
         }
-        /* smoother        DIC;  */
         tolerance       1e-8;
         relTol          0.01;
     }
@@ -38,10 +43,15 @@ solvers
 
     "(U|T|k|epsilon)"
     {
-        solver          PBiCGStab;
+        // from tubeBundle:
+        solver          smoothSolver;
+        smoother        symGaussSeidel;
+        tolerance       1e-08;  // tubeBundle: 5
+        relTol          0.01;   // tubeBundle: 0.1
+        /* solver          PBiCGStab;
         preconditioner  DILU;
         tolerance       1e-8;
-        relTol          0.01;
+        relTol          0.01;*/
     }
 
     "(U|T|k|epsilon|omega)Final"   // add omega because of error