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Heat Solver Problem

- October 30, 2024 at 9:58 am
  
  marceau.nouvellon
  Subscriber
  
  At the end of a 3D simulation with lumerical heat solver --> The program terminated due to an error: Heat Flow solver encountered an unexpected numeric error after 0 iterations ( detail: linear system solver error 3 ). I cannot find what the detail message refer to ...
- October 30, 2024 at 8:51 pm
  
  Guilin Sun
  Ansys Employee
  
  Could you first test without heat source? it is hard to diagnosis with such error message. You may try to check if the meshing works fine; heat source power is too high from zero; or time step size is too large etc.
  ?feature=oembed
  Since HEAT solver is linear, usually it will work as long as the meshing is proper.

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