Ansys Your Product License Has Numerical — Problem Size Limits Verified Best

If you are a simulation engineer, you have likely encountered the dreaded pop-up or output message while solving a model in Ansys Fluent, Mechanical, or HFSS: “Your product license has numerical problem size limits verified” or a variation such as “License limits restrict the maximum problem size (number of nodes/cells).”

After each reduction, check the solver output window for the elusive *** NOTE *** message that confirms the license limit and the current problem size. If you are a simulation engineer, you have

| 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 | If you are a simulation engineer

Whether you're a student pushing the boundaries of a free license or a researcher managing university seats, the error 000 nodes/elements | ~100