Ansys Your Product License Has Numerical Problem Size Limits Verified May 2026

Ansys offers various licensing tiers ranging from free student versions to high-end enterprise packages. To keep the student versions accessible, Ansys limits the complexity of the models you can solve.

If you are at a university, check if your lab has a "Research" license. These have much higher limits (often in the millions) or are completely "Unlimited." Ansys offers various licensing tiers ranging from free

If your research or professional project requires a higher fidelity than the "verified" limits allow, you have three primary paths: These have much higher limits (often in the

The limits depend heavily on which version of Ansys you are running. As of the most recent releases, the standard limits for versions are: Structural (Ansys Mechanical): 128,000 nodes/elements. Fluid (Ansys Fluent / CFX): 512,000 cells/nodes. Remove small fillets, rounds, or decorative features that

Remove small fillets, rounds, or decorative features that don't impact the global physics. These features often "hog" elements by forcing the mesher to create tiny cells in insignificant areas. Use Shell and Beam Elements

Instead of a fine global mesh, use a coarse global mesh and apply or Inflation Layers only where the gradients are high (like at a bolt hole or a wing's leading edge). 4. Moving Beyond the Limits