FLUENT - Tips for converging a highly compressible case using the segregated solver
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This solution contains a suggested procedure to converge highly compressible flow cases with the segregated solver.
-use incompressible (constant density) -use default limits (Solver-> Controls->Limits) -use default discretization and under-relaxations (Solve->Controls->Solution) -use default Multigrid Solver settings (Solve ->Controls->Multigrid) -initialize at average pressure -iterate to converge (may change URF) -change to ideal-gas law -Report->Volume Integrals Take volume-average of static pressure -Solve->Initialize->Patch Patch pressure ONLY to the average value. -iterate It should converge nicely. -you may continue with 2nd-order flow |
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