6.7 Converting the Mesh to a Polyhedral Mesh

Since the ANSYS FLUENT solver is face based, it supports polyhedral cells. The advantages that polyhedral meshes have shown over some of the tetrahedral or hybrid meshes is the lower overall cell count, almost 3-5 times lower for unstructured meshes than the original cell count. Currently, there are two options in ANSYS FLUENT that allow you to convert your nonpolyhedral mesh to a polyhedral mesh:

• Converting the entire domain into polyhedral cells (applicable only for meshes that contain tetrahedral and/or wedge/prism cells).

• Converting skewed tetrahedral cells to polyhedral cells.