Ansys Your Product License Has Numerical Problem Size Limits Verified Here

If you once ran a simulation that was too big, Ansys sometimes "remembers" the error. Even after reducing the mesh, the setup cell may need a reset. 5 Pro-Tips to Fix the Error 1. Compress and Renumber Your Mesh If your problem is sparse Node IDs, you can "compact" them. Right-click on Mesh Numbering Compress Node Numbers Right-click Mesh Numbering and select Renumber Mesh 2. Simplify Geometry (Shells and Beams)

Typically limited to 256,000 nodes for FEA.

Use coarser, larger elements in areas far away from the regions of interest. 3. Switch Element Types

Typically 128,000 nodes.

ANSYS uses a "node/element count" metric to differentiate between free/affordable student software and professional-grade, paid licenses. When the solver starts, it checks the complexity of your mesh. If the number of nodes or cells exceeds the predefined threshold, the solver stops to prevent you from solving a professional-level simulation on a student license. Common Limits: If you once ran a simulation that was

Understanding and Resolving "Your Product License Has Numerical Problem Size Limits" in ANSYS

If your engineering problems require high-fidelity, uncompromised meshes, you have outgrown your current tier. You will need to contact your Ansys account manager or channel partner to upgrade from Student to Academic, or from Pro/Premium to an Enterprise commercial license. To help narrow down the solution, tell me:

Sometimes, you own a premium license, but Ansys defaults to a student or lower-tier license on startup.

Another "hidden" factor relates to how ANSYS internally numbers nodes. The error check is not always against the of nodes, but rather against the highest node ID number . When you use features like remote points , ANSYS assigns a large, arbitrary number to the pilot node. Compress and Renumber Your Mesh If your problem

The free student version is designed for learning and basic academic coursework. It features the strictest limits:

Using a small element size across the entire geometry instead of only where necessary.

If a model fails once, the error can sometimes "stick" in the Setup cell. Try duplicating the Model cell and creating a fresh Setup cell to reset the license check. Your product license has numerical problem size limits…..

| License Type | Typical Node/Elements Limit | DOF Limit (Approx.) | | :--- | :--- | :--- | | ANSYS Student | 32,000 nodes/elements | ~100,000 DOFs | | ANSYS Academic Teaching | 512,000 nodes/elements | ~1.5M DOFs | | ANSYS Academic Research | 2,000,000+ (varies) | ~4M-8M DOFs | | ANSYS Professional | 20,000 nodes/elements | ~60,000 DOFs | | ANSYS Enterprise/ Premium | Unlimited (hardware dependent) | None | Use coarser, larger elements in areas far away

If your model is symmetric, slice it in half or quarters. Apply symmetric boundary conditions to reduce your node count by 50% to 75%.

Understanding the specific limits of your license is the first step to effective troubleshooting:

Understanding the "Your Product License Has Numerical Problem Size Limits" Error in ANSYS