[RossFS]

Context: Ansys Workbench, meshing for use with ANSYS CFX

With the default settings the mesh is all made of hexahedra elements and the model is 1 cell/element thick. As soon as I use inflation (which I need in the boundary layer) the elements above the inflation layers become tetrahedra elements and end up making the model 2 elements thick (as can be seen in an image below). This is definitely not a 1 cell thick model as I'm getting momentum and velocity components being calculated in the z direction during the solution.

I've even had the model 0.01mm thick and the mesh still ends up being 2 cells thick (like in the image below).

The cells above my inflation layers can be either tetrahedra or hexahedra in shape, but I have to have the model run as a 2D simulation.

Side on:



Iso view - red indicates location of close up that follows this


Close up: