Session 11

Generate Volume Mesh in ANSYS Fluent Meshing

The Generate Volume Mesh feature transforms prepared CAD geometry into simulation-ready computational mesh for CFD analysis. It fills the volume domain with elements optimized for fluid flow or conjugate heat transfer simulations.

Key Controls:

Fill With: Select polyhedral (efficient convergence), tetrahedral (complex geometry), hexcore, or poly-hexcore mesh types

Enable Parallel Meshing: Utilizes multiple CPU cores to accelerate large model meshing

Sizing Method: Global sizing or region-specific maximum cell length + growth rate controls

Region Selection: Independently mesh fluid domains, solid regions, or both for coupled physics simulations

Polyhedral meshes typically offer superior solver performance with fewer elements, while region-based sizing provides precise control near critical features.