Fluids

Fluids

Solver not starting for solution

    • krs19
      Subscriber

      I am doing a 2d simulation of adsorption and desorption of carbon where I am using 4 UDS to store calculated values for the adsorption and desorption.


      But when I am running the simulation I am encountering the following error


      Divergence detected in AMG solver: temperature Stabilizing uds-3 to enhance linear solver robustness.


      Stabilizing uds-3 using GMRES to enhance linear solver robustness.


       


       


       


      Divergence detected in AMG solver: uds-3


       


      Error at host: floating point exception


       


       


       


      Error at Node 0: floating point exception


       


       


       


      ===============Message from the Cortex Process================================


       


       


       


      Compute processes interrupted. Processing can be resumed.  


      Error: floating point exception


      Error Object: #f


       


      Registering Udf, ("G:Canister SimulationUDFudf.c")


       


       


       


      Calculation complete.


       



    • Karthik R
      Administrator

      What is your mesh quality? (Max Skewness and Min Orthogonal quality) Please check if you have a good mesh to start with? 


      Also, are you able to compile your UDF without any errors?


      Karthik

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