Karthik R

What geometry are you using? Are you importing an external geometry file from a different tool? Can you please share some screenshots of this geometry here?

Could you please try these following steps (in this order)?

  • Open a new WorkBench session.

  • Create a new workflow task for Fluent.

  • Left-click on geometry and on the right side of your WB session, you should see the settings pop-up. Please change the analysis type from 3D to 2D.

  • Create a simple rectangle on the XY plane in SpaceClaim, and close SpaceClaim.

  • Open WB meshing and mesh this rectangle. 

  • Once you have a green check next to your Mesh task, now open this mesh in Fluent. Do you see this launch?

Could you please test this and let me know your results here?