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April 3, 2009, 13:34 |
mesh size and convergence
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#1 |
New Member
Ertan Karaismail
Join Date: Apr 2009
Posts: 17
Rep Power: 17 |
Hi all,
I am running an unsteady simulation (in FLUENT) of airflow for a HVAC project. The flow is turbulent and I am using SST k-w turbulence model. Time and spatial discretizations are all 2nd order. Solver is implicit. Time step is 0.001s. The grid I am using can be considered as coarse. The problem is that the solution (especially continuity) is converging so slowly even though I played aroung the URF of momentum and pressure. I am wondering if grid is the only problem here. Do you have any ideas to share? Thanks. Ertan |
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