scalar convergence
I'm modeling atmospheric flow over a cubic obstacle with h2 dispersion (buoyancy on) behind the building. I'm runing a transient case. I'm having trouble fixing my model to correct the following messeges:
*** WARNING #009 ***THE VALUE OF SCALAR SC1 IN CELL 36 ( -6.7978-320) IS BELOW THE MINIMUM ( 0.0000E+00) SCALAR VALUES BELOW THE ACCEPTALE MINIMUM FOUND AT *** CELLS •(after 100 time steps) *** WARNING #013 *** MAXIMUM SPECIFIED CORRECTOR STAGES 20 REACHED BEFORE CONVERGENCE CRITERION IS SATISFIED. -SCALAR EQUATION 1 NOT CONVERGE- I suppose these are related. I have read all messeges that I could find on this problem... still not really clear on what to do. For the scalar equation I'm using the CD (BF=1) 150 sweeps and 0.01 residual tolerance Performed a grid check (tetrahedral) and the only prblems are a few angles (face) below limit Avg Courant No. between 10-1 any suggestions? THANKS A LOT! Hector |
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