diff --git a/tutorials/cfdemSolverRhoPimple/VortexShedding/prerun.sh b/tutorials/cfdemSolverRhoPimple/VortexShedding/prerun.sh
new file mode 100755
index 00000000..360e0c23
--- /dev/null
+++ b/tutorials/cfdemSolverRhoPimple/VortexShedding/prerun.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+
+pushd CFD
+
+transformPoints -scale "(0.001 0.001 0.001)"
+checkMesh
+#- make the linear system more diagonal dominant to speed-up the linear solvers
+renumberMesh -overwrite -noFunctionObjects
+
+popd
+
diff --git a/tutorials/cfdemSolverRhoPimple/VortexShedding/run.config b/tutorials/cfdemSolverRhoPimple/VortexShedding/run.config
index 4f43baad..754adee7 100644
--- a/tutorials/cfdemSolverRhoPimple/VortexShedding/run.config
+++ b/tutorials/cfdemSolverRhoPimple/VortexShedding/run.config
@@ -5,7 +5,8 @@
       "name" : "cfdemrun",
       "solver" : "cfdemSolverRhoPimple",
       "type" : "CFDEMcoupling/mpi",
-      "nprocs" : 4
+      "nprocs" : 4,
+      "pre_scripts" : ["prerun.sh"]
     }
   ]
 }