Residuals vs unscaled residuals

    • Diogo Martinho

      Dear all,

      I am simulating using K-omega SST and whenI look at the scaled residuals they seem to be okay. However, when I look at the non-scaled, omega is really high. Do you think you could give me some inputs on the matter? 

      Best regards,


    • Essence
      Ansys Employee



      You might try using different Flux-type in Pressure-Velocity Coupling in Solution Methods. Also, try changing the URFs. Might happen due to bad quality mesh also. 

      There exists the difference between the scaled and unscaled residuals. You can find more about them here: 33.15. Monitoring Solution Convergence (ansys.com)


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