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  3. How to improve convergence of scalar equations like the electric potential E-Pot?

How to improve convergence of scalar equations like the electric potential E-Pot?

Tagged: 2021 R1, CCL, cfx, Convergence Problems, Expert Parameters, fluid-dynamics, General, Heat Transfer and Radiation
    • January 25, 2023 at 7:16 am
      FAQFAQ
      Participant

      Especially in complex cases with many domains and GGI interfaces the convergence of scalar equations (i.e. E-Pot for electric potential) can become slow, resulting in a large number of iterations to obtain a steady state result of the scalar. The following Expert Parameters will ensure a tighter convergence in the linear solver and thus result in reduced iterations for steady state results of scalar. Either use solver target reduction scalar = 0.0005 or mg small grid = 50 solver target reduction scalar = 0.01

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