remove hexas from fsi structure

Author: jginternational

kratos.gid/apps/FSI/examples/MokChannelWithFlexibleWall.tcl

@@ -164,7 +164,8 @@ proc FSI::examples::AssignMokChannelFlexibleWallMeshSizes3D {args} {
 
     GiD_Process Mescape Utilities Variables SizeTransitionsFactor 0.4 escape escape
     GiD_Process Mescape Meshing ElemType Tetrahedra [GiD_EntitiesGroups get Fluid volumes] escape
-    GiD_Process Mescape Meshing ElemType Hexahedra [GiD_EntitiesGroups get Structure volumes] escape
+    GiD_Process Mescape Meshing ElemType Tetrahedra [GiD_EntitiesGroups get Structure volumes] escape
+    # GiD_Process Mescape Meshing ElemType Hexahedra [GiD_EntitiesGroups get Structure volumes] escape
     GiD_Process Mescape Meshing Structured Surfaces 14 16 escape $long_side_divisions 12 14 escape $long_side_divisions 45 46 escape escape
     GiD_Process Mescape Meshing Structured Surfaces 15 escape $short_side_divisions 13 escape $long_side_divisions 45 46 escape escape
     GiD_Process Mescape Meshing Structured Volumes [GiD_EntitiesGroups get Structure volumes] escape $short_side_divisions 48 escape $long_side_divisions 15 17 52 53 escape escape