Ansys Your Product License Has Numerical Problem Size Limits Verified Extra Quality -
For a Student license in structural mechanics, the sum of the nodes and elements must be under the limit (e.g., 32,000). Do not check them independently.
The numbers in the table above are standard guidelines. However, many users are confused when their model's node count seems well within the given limit, yet they still encounter the error. This is because the "check" mechanism is more sophisticated than a simple headcount.
Ensure your Node Offset is set to in the solver settings. A non-zero node offset can artificially reduce the allowed upper limit of nodes, making a 98,000-node model fail when 128,000 might have been allowed. 4. Workarounds for Complex Problems (Student Version)
Understanding the "Ansys Product License Numerical Problem Size Limits Verified" Message For a Student license in structural mechanics, the
While the primary wording is consistent, users have reported various iterations, including:
Importing complex geometries with many small fillets, holes, or intricate features that require a high node density to capture properly.
In simple terms, refers to the number of degrees of freedom (DOFs) in your simulation. However, many users are confused when their model's
| License Type | Solver Discipline | Limit (Nodes/Elements) | Additional Context | | :--- | :--- | :--- | :--- | | | Structural | 32,000 nodes or elements | Sum of elements + nodes must be < 32k. This is the most common source of the error for students. | | Student Version | Fluids (CFD) | 512,000 nodes or elements | Allows for more complex mesh density in fluid simulations. | | Student Version | Geometry | 50 bodies / 300 faces | Cap on assembly and part complexity before meshing. | | Academic Teaching License | Structural | 32,000 - 256,000 | Varies by version. Some versions for mechanical allow up to 256k, but many are still capped at 32k. | | Academic Teaching License | Fluids (CFD) | 512,000 | This is the standard limit for most "Academic Teaching" CFD products. | | Academic Teaching Advanced | Structural/Thermal | Up to 256,000 | A higher-tier academic license providing significantly more flexibility. | | Commercial License | All | Unlimited | No problem size restrictions. Designed for professional, large-scale simulations. | | Research License | All | Unlimited | Typically used by universities for advanced projects that exceed teaching limits. |
If your geometry and boundary conditions are symmetric, model only 12one-half 14one-fourth 18one-eighth of the geometry and apply . D. Reduce Element Order
Typically limited to 32,000 nodes or elements . A non-zero node offset can artificially reduce the
Solid 3D elements (like HEX or TET) consume a massive number of nodes. Convert thin-walled 3D parts into .
What are you currently running? (Student, Research, Commercial) What is your current Node/Element count ?
The limits vary significantly depending on the physics being simulated and the version of the software:
The "Your product license has numerical problem size limits verified" error in ANSYS is a clear communication, not a cryptic failure. It signals that your simulation has grown too complex for your current license type. By understanding the specific numerical caps on your license and mastering techniques like mesh refinement, geometry simplification, and using symmetry, you can often resolve the issue immediately. For those who need to push beyond these limits, the path forward involves discussing a license upgrade with your academic institution or employer.
