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Old   June 27, 2009, 02:02
Default Convergence issue with fine grid
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Hi All,
I am trying to study the flow of a fluid inside a circular duct using FLUENT.

I have meshed the geometry using HEX elements.

I am using K epsilon turbulence model with enhanced wall functions.

I have kept 3 cells below y+ < 5 range for Re = 1,00,000 and the solution converged.

But when I use the same mesh for Re = 50,000, continuity equation is not converging. ie Y <<1

Can any body help me out in this issue.

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