Remove small fillets, holes, or decorative features that force the mesher to create unnecessary elements.
To gather information, I'll perform a series of searches covering different aspects: general licensing problem size limits, verification methods, error messages and workarounds, specific product limits (like Mechanical, Fluent), and Ansys Elastic Licensing. I'll start with these searches. search results show many forum posts about the "numerical problem size limits" error, particularly with student and academic licenses. The results also mention specific limits: 32,000 nodes/elements for structural, 512,000 cells for Fluent, and Elastic Licensing as a flexible option. To gather detailed information for the article, I need to open several of these forum posts and official pages. search results provide a wealth of information about the error, its causes, limits, and solutions. The article will explain the error, detail problem size limits for various license types, explain why it occurs even with node/element counts within limits, provide a step-by-step guide to verify status, offer solutions and workarounds, and discuss upgrading options. I will structure the article with an introduction, sections on understanding the error, license types and limits, verification steps, advanced troubleshooting, solutions and workarounds, upgrading licenses, and a conclusion. The article will be comprehensive and practical. I will now start writing the article. “Your product license has numerical problem size limits verified” error is a restrictive gatekeeper that emerges when a simulation model is too large for the specific license type you are using. This error is a common stumbling block, especially for users on academic or free student licenses. This article will serve as a comprehensive guide to understanding the root cause of this error, how to verify the limitations of your license, and the most effective strategies to resolve it.
If model reduction is not feasible, the only alternative is to use a different license:
By following the guidelines and best practices outlined in this article, you can ensure that you are using ANSYS software efficiently and effectively, while also maximizing the value of your investment.
If the straightforward solutions fail, consider these advanced steps: Remove small fillets, holes, or decorative features that
Every master of ANSYS has encountered this error. It serves as a practical lesson in balancing model fidelity against computational limits—a crucial concept for any simulation engineer to internalize.
What are you performing? (Structural, CFD, Electromagnetics) Share public link
Set an alert in Mechanical when nodes exceed 90% of your license limit. Use *GET, maxnode, PARM, NODE, NUM_MAX in an APDL command snippet.
Sometimes the “verified” warning is a false positive due to corrupt license files or server overload. search results show many forum posts about the
Limited by the number of mesh elements or unknowns .
set ANSYSLM_LICENSE_FILE=1055@myserver
In Mechanical, the solver creates "contact elements" at runtime to handle interactions between parts. These are invisible in your initial mesh count but toward the license limit. The "Ghost" Limit:
: The free Ansys Student edition typically caps structural and fluids simulations at 128,000 nodes/elements (or up to 512,000 for certain fluids solvers depending on the release version). search results provide a wealth of information about
When Ansys says your license has a “verified limit,” it means your current license token only permits simulations up to a certain DOF count.
Different ANSYS licenses have varying "Numerical Problem Size Limits" based on the number of or elements (or a combination of both) you are permitted to solve. The error message is essentially a safety check: the software recognizes that proceeding would violate its own licensing agreement.
Even if your visible mesh count is below the limit, the solver may still block you due to: Your product license has numerical problem size limits…..