Ansys Fluent can import different types of meshes from various sources. You can modify the mesh by translating or scaling node coordinates, partitioning the domain for parallel processing, and merging or separating zones. You can convert all 3D meshes to polyhedral cells, except for pure hex meshes. Hexahedral cells are preserved during conversion. You can also obtain diagnostic information on the mesh, including memory usage and simplex, topological, and domain information. You can find out the number of nodes, faces, and cells in the mesh, determine the minimum and maximum cell volumes in the domain, and check for the proper numbers of nodes and faces per cell. These and other capabilities are described in the following sections.

• 6.1. Mesh Topologies
• 6.2. Mesh Requirements and Considerations
• 6.3. Mesh Sources
• 6.4. Reference Frames
• 6.5. Curvilinear Coordinate Systems
• 6.6. Non-Conformal Meshes
• 6.7. Overset Meshes
• 6.8. Controlling Flow in Narrow Gaps for Valves and Pumps
• 6.9. Checking the Mesh
• 6.10. Reporting Mesh Statistics
• 6.11. Converting the Mesh to a Polyhedral Mesh
• 6.12. Modifying the Mesh