Convergence

- September 10, 2019 at 1:12 pm
  
  Inims
  Subscriber
  
  Hello All,
  
  I have set my convergence criteria to 10e-06. The continuity has not fallen more than 10e-03 where as the other residuals had fallen even below 10e-06. As a result I have not gotten a converged solution. I used SIMPLE Algorithm as default and Bounded 2nd Order for Transient Formulation. I also left the URF as default.
  
  Please can I get some insight on what to do to get a converged solution.
  
  Thanks
- September 10, 2019 at 2:13 pm
  
  DrAmine
  Ansys Employee
  
  Please have a look at first into Judging Convergence in Fluent User's Guide.
  
  Moreover try using coupled solver for enhanced (quicker) convergence.
- September 10, 2019 at 2:20 pm
  
  DrAmine
  Ansys Employee
  
  Residual convergence alone is not a warranty that a case is converged aslo check fluxes under mass imbalances and monitor the convergence behavior of some important quantities.

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