Dear Sirs,

I've been trying to get the grid in ICEM for Ansys CFX to make 2D simulation.

I would like to have 3D mesh with 1-element width to use Symmetry condition on the flat surfaces. To do this I use ICEM in the following manner:

1. Create plane drawing 2. Surface mesh this drawing 3. Extrude mesh to 1 layer 4. Output to CFX

As a result I have 3D mesh in ANSYS CFX, but I can't make any boundary conditions as I have no 2D regions.

Could you help me? What steps should I do to make 3D mesh with 1-element width? I would like to have the mesh like in "Free Surface Flow Over a Bump" in the CFX tutorial.

Thank you!

There are icemcfd tutorials in the icemcfd help file that cover this.

Once you've extruded the mesh to have one 3D element thick - you need to make sure you have surface elements all around. You can use the Edit Mesh > Check Mesh function for this. (Look for uncovered faces.) Then you can move these surface elements into appropriate groupings for boundary conditions.

Thank you, Joe!

Could you point me to the appropriate tutorial? Unfortunately, I can't find it myself.

Icemcfd help manual

Hello,

The following topic might help you:

http://www.cfd-online.com/Forum/cfx.cgi?read=19816

Before extruding your mesh in ICEM, put all mesh elements in a specific part (say symmetry1). Then extrude it using the dialog boxes to specify the names for the "top" (let's say symmetry2)and the sides (sides). In CFX-Pre you'll find thoses 3 names that define the mesh. You can right-click on any of them to edit your mesh and split the part "sides" in "inlet", "outlet", "top", etc...

There is probably a way to name the sides with different names in ICEM but I still haven't figured it out yet.

Hope this helps,

Felix