From 0e7de1b8dff21e10661679b6958dcfaeb7aacdd2 Mon Sep 17 00:00:00 2001 From: Henry Weller <http://cfd.direct> Date: Tue, 23 Jun 2015 20:33:48 +0100 Subject: [PATCH] tutorials/incompressible/simpleFoam/pitzDaily: Change to use SIMPLEC With the SIMPLE "consistent" option and optimized relaxation factors this tutorial now converges in 210 iterations, previously with SIMPLE it took 950. Despite the increase in cost per time-step due to the increase in relaxation factors and number of solver iterations the speed-up is 3.5x. --- .../simpleFoam/pitzDaily/system/fvSolution | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/tutorials/incompressible/simpleFoam/pitzDaily/system/fvSolution b/tutorials/incompressible/simpleFoam/pitzDaily/system/fvSolution index 0c4a0e387da..9a4ad934217 100644 --- a/tutorials/incompressible/simpleFoam/pitzDaily/system/fvSolution +++ b/tutorials/incompressible/simpleFoam/pitzDaily/system/fvSolution @@ -43,6 +43,7 @@ solvers SIMPLE { nNonOrthogonalCorrectors 0; + consistent yes; residualControl { @@ -54,14 +55,10 @@ SIMPLE relaxationFactors { - fields - { - p 0.3; - } equations { - U 0.7; - ".*" 0.5; + U 0.95; + ".*" 0.95; } } -- GitLab