Ansys Your Product License Has Numerical Problem Size Limits

A: No. Numerical limits are enforced before parallelization; HPC licenses only solve faster, not larger.

If you are a simulation engineer, a graduate student, or a researcher working with Ansys, you have likely encountered a dreaded pop-up or console output message: Ansys Your Product License Has Numerical Problem Size Limits

: Sometimes your total node count is below the limit, but because of how the mesh was generated, some nodes have ID numbers (e.g., Node #35,000) that exceed the allowed range. Note: In CFD (Fluent/CFX), the limit applies to

Note: In CFD (Fluent/CFX), the limit applies to the total sum of cells and nodes. Why Is This Happening? Note: In CFD (Fluent/CFX)

| License Tier | Typical Node/DOF Limit | Common Use Case | | :--- | :--- | :--- | | | 16,000 nodes or 32,000 DOFs | Classroom learning, simple parts | | Teaching (TT) | 32,000 nodes or 128,000 DOFs | Lab exercises, basic instruction | | Research (Mechanical RF) | 128,000 nodes or 512,000 DOFs | Graduate research, moderate complexity | | Professional (MP) | 128,000 nodes (for Mechanical) | Professional design engineers | | Enterprise (EE) | 4,000,000+ nodes / Unlimited | Full production simulation | | Fluent Academic | 512,000 cells | Academic CFD research |