Convergence problem?
Hello, this is my first post, i'm actually a new user to ANSYS FLUENT.
I'm in the design process of an airfoil, i did my mesh(ICEM) and the quality tells me i'm over 0.8 in all the mesh. When i run the FLUENT analysis, it always converges on 0 to 12° AoA, even though i think i'm wrong the AoA vs Cl plots a very nice curve. I don't really know if that's correct. I used Trans SST coupled and second order upwind with pseudo transient active. When iterating approximately at 160 to 180 it converges, the residuals also converge. :confused::(:(:(:(:(:(:(:(:( help pls |
hi johan
may be you can decrease your time step-size or select as adaptive instead of fixed and convergence also depends on courant number so you can check that as well
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