The "Ansys: Your product license has numerical problem size limits verified" message typically appears when you're running a large-scale simulation using Ansys software. This message indicates that the software has detected that your license has limitations on the numerical problem size that can be solved. In other words, your license has restrictions on the maximum number of nodes, elements, or other parameters that can be used in a simulation.
: The free Ansys Student edition typically caps structural and fluids simulations at 128,000 nodes/elements (or up to 512,000 for certain fluids solvers depending on the release version).
Open a command prompt/terminal as Administrator and run: The "Ansys: Your product license has numerical problem
When you encounter the error "Your product license has numerical problem size limits," it typically means your current model's mesh count
Remote boundary conditions, moments, and contacts often generate additional "hidden" connection elements at the start of a solve, pushing you over the limit. Node ID Inflation: In some cases, the limit isn't just the of nodes, but the highest : The free Ansys Student edition typically caps
When encountering the problem size limit error, the primary approach is to reduce the mesh size and model complexity:
| License Type | Max DOFs (Structural) | Max Cells (CFD) | HPC Cores | |-----------------------------|------------------------|------------------|------------| | ANSYS Academic Teaching | 512,000 | 1M cells | 4 | | ANSYS Academic Research | Unlimited (with HPC) | Unlimited | 64+ | | ANSYS Professional | 32,000 | N/A | 2 | | ANSYS Enterprise | Unlimited | Unlimited | 16 (base) | | ANSYS Mechanical Pro | 128,000 | N/A | 4 | This guide explains why this licensing error occurs,
This is more advanced but sometimes necessary for complex models.
This guide explains why this licensing error occurs, breaks down the specific node and mesh limits for different Ansys tiers, and provides actionable steps to resolve the issue. Understanding the Error