Hello everyone!
I'm doing a simulation in fluent and at some point, usually after the first 15 steps, the error appears:
Divergence detected in AMG solver: temperature
Divergence detected in AMG solver: temperature
Error at host: floating point exception
Error at Node 0: floating point exception
Error at Node 1: floating point exception
===============Message from the Cortex Process================================
Compute processes interrupted. Processing can be resumed.
==============================================================================
Error: floating point exception
Error Object: #f
I'm compiling a UDF file, Time transient, convergence criterion relative, number of time steps 1000, able Specified Operating Density like zero kg/m^3. The mesh is refined in the best possible way.
What is the reason behind it?
Best regards.
Dear @Cleber,
A floating point exception is an error that occurs when you try to do something impossible with a floating point number, such as divide by zero.
In fluent floating point error can be caused by many factors such as, improper mesh size, defining some property close to zero. However, floating point exception is very specific case that is being solved, the actual reason can be determined by changing one quantity (can be mesh, model, parameters, boundary conditions etc.) at the time.
This type of error mostly caused by improper meshing. Refine your mesh and do the simulation. Consider even element size for all the components in your design.
Good luck!!!
@cleber
- Badges
- Science topic