: If you once exceeded the limit and then reduced your mesh, the software sometimes "latches" onto the error and won't reset. How to Fix the Problem Size Limit Error 1. Use Symmetry to Reduce Model Size
To manage large-scale simulations effectively and overcome numerical problem size limits, follow these best practices: Ansys Your Product License Has Numerical Problem Size Limits
| License Product / Tier | Typical Limit (Nodes/Elements/DOFs) | |-----------------------|--------------------------------------| | Ansys Student / Free | ~32k nodes / 16k elements | | Ansys Academic Teaching | ~128k nodes / 64k elements | | Ansys Academic Research (Mechanical) | ~512k nodes | | Ansys DesignSpace (Basic) | ~20k nodes | | Ansys Mechanical Pro | ~200k nodes | | Ansys Mechanical Premium | ~500k nodes | | Ansys CFD (e.g., CFX, Fluent – basic) | ~512k cells/nodes | | Ansys Discovery Student | Small geometry sizes, not explicit DOF | : If you once exceeded the limit and
Numerical problem size limits refer to the maximum number of nodes, elements, or degrees of freedom that can be used in a simulation model. These limits are imposed by the Ansys software and are typically tied to the specific product license being used. The limits are in place to prevent excessively large models from being simulated, which can lead to performance issues, crashes, or unrealistic results. These limits are imposed by the Ansys software
The numerical problem size limits are primarily driven by the following factors: