diff --git a/tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/constant/couplingProperties b/tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/constant/couplingProperties
index ea14da15..a2dabecd 100644
--- a/tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/constant/couplingProperties
+++ b/tutorials/cfdemSolverPiso/ErgunTestMPI/CFD/constant/couplingProperties
@@ -61,7 +61,6 @@ forceModels
     gradPForce
     viscForce
     KochHillDrag
-    //DEMbasedDrag
     //RongDrag
     //Archimedes
     //volWeightedAverage
@@ -140,11 +139,6 @@ GidaspowDragProps
     interpolation true;
     phi 1;
 }
-DEMbasedDragProps
-{
-    velFieldName "U";
-    voidfractionFieldName "voidfraction";
-}
 
 DiFeliceDragProps
 {
diff --git a/tutorials/cfdemSolverRhoPimple/ErgunTestMPI/CFD/constant/couplingProperties b/tutorials/cfdemSolverRhoPimple/ErgunTestMPI/CFD/constant/couplingProperties
index 160d6023..fe393283 100644
--- a/tutorials/cfdemSolverRhoPimple/ErgunTestMPI/CFD/constant/couplingProperties
+++ b/tutorials/cfdemSolverRhoPimple/ErgunTestMPI/CFD/constant/couplingProperties
@@ -61,7 +61,6 @@ forceModels
     gradPForce
     viscForce
     //KochHillDrag
-    //DEMbasedDrag
     //RongDrag
     //Archimedes
     //volWeightedAverage
@@ -162,11 +161,6 @@ GidaspowDragProps
     interpolation true;
     phi 1;
 }
-DEMbasedDragProps
-{
-    velFieldName "U";
-    voidfractionFieldName "voidfraction";
-}
 
 DiFeliceDragProps
 {