You have likely set up the physics correctly, but the discretization (mesh) is too fine.
| License Type | Structural/Thermal Limit | Fluid Physics Limit | Notes | | :--- | :--- | :--- | :--- | | | 128K nodes/elements | 512K cells | Built-in license, no server required | | Research License (aunivres) | 512K nodes | 512K cells | No node restrictions for some versions | | University Advanced (ansysrf) | 128K nodes | 512K cells | Paid academic license | | University Intermediate (ansysuh) | 32K nodes | 512K cells | Lower tier academic license | | University Introductory (ansysul) | 16K nodes | 512K cells | | | Teaching License (aa_t) | 512K nodes | 512K cells | | | Commercial/Research (aa_r) | No node restrictions | No cell restrictions | Capped by hardware and time | | Ansys SPEOS Student | 32K triangles | N/A | Geometry: 50 bodies max | You have likely set up the physics correctly,
The message "Your product license has numerical problem size limits, you have exceeded these problem size limits and the solver cannot proceed" is a licensing restriction embedded into specific Ansys software versions, particularly academic and free student licenses. This warning appears when the simulation mesh (comprising nodes/elements for structural simulations or cells for fluid dynamics) exceeds the predefined threshold for that specific license type. Instead of making the entire mesh smaller, use
Instead of making the entire mesh smaller, use a coarse global mesh. Apply a "Mesh Sizing" control only to the critical faces or edges where stress concentrations or high fluid gradients occur. You have likely set up the physics correctly,