Numerical Problem Size Limits Verified: Ansys Your Product License Has
In this article, we will explore the numerical problem size limits associated with ANSYS, discuss their implications, and provide guidance on verifying and mitigating these limitations.
ANSYS offers various licensing options to cater to different user needs, including:
A forum user experienced this firsthand. They had a model with 110,000 elements and 90,000 nodes, well under a theoretical 128k limit, but applying hydrostatic pressure triggered the error. The root cause was the SURF154 surface effect elements created by the pressure load, which pushed the total count over the edge.
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. In this article, we will explore the numerical
Typically limited to 32,000 nodes or elements .
This error occurs when your model's allowed by your specific Ansys license , a common restriction in free student and introductory academic versions. Standard License Limits
This error message typically appears in Ansys products (like Fluent, CFD, or Mechanical) when the license manager detects that the problem you are trying to solve requires more resources (cells, nodes, or equations) than your specific license type permits. The root cause was the SURF154 surface effect
*** WARNING *** Your current license (ANSYS Professional) limits DOFs to 32,000. Current model has 45,200 DOFs. Solution will not proceed.
Typically limited to 32,000 nodes/elements .
Are you currently working on a or fluids project, and do you know your current node count ? Typically limited to 32,000 nodes or elements
ANSYS scales its software capabilities based on the license type. This error typically triggers when your model's mesh density (the number of nodes and elements) exceeds the maximum allowed by your current seat. It is most common in two scenarios:
"Your product license has numerical problem size limits, you have exceeded these..."
Sometimes you check your mesh and see 30,000 nodes—well under the 128,000 limit—yet it fails. Why? Contact Elements:
