I have this warnings in run history
*** WARNING #038 *** UNNORMALISED RESIDUAL CANNOT BE REDUCED TO 1.000000E-06 IN EQ: PCOR ROUND-OFF ERROR RESCUE NOT ATTEMPTED; SOLUTION RETURNED WITHOUT UPDATE
*** WARNING #001 *** FLUID INFLOW DETECTED AT SOME OUTFLOW BOUNDARIES WHERE MASS FLUXES ARE FORCED TO ZERO.
F THIS CONDITION PERSISTS, YOUR RESULTS MIGHT BE WRONG THE OUTFLOW BOUNDARY MIGHT NOT BE WELL SPECIFIED OR THE GRID MIGHT BE TOO COARSE NEAR THE OUTFLOW BOUNDARY
** WARNING #090 *** VALUE ELOG*YPLUS OR ELOG*EFFVIS/(CAPPA*VISCOS) IS LESS THAN 1.1 AT 444 CELLS.UPLUS=YPLUS LAW IS USED. IF THIS SITUATION PERSISTS, INCORRECT RESULTS MAY BE OBTAINED.
Any help should be apreciated
error 038: the pcor unnormalised residual was below the residual tolerance on the first sweep
error 001: you have an outlet boundary in an area of recirulation and flow is trying to get back in. If you get it only a couple of times at the beginning of the analysis, you can ignore it. If you get it all the time that it must be dealt with. Either change it to a pressure boundary, which doesn't mind if flow goes in or out, or move the outlet farther downstrem.
error 090: your y+ values are too low for the turbulence model you are using and the near wall mesh is too fine. you could switch to a low Re model with the hybrid wall option on.
Thanks Jamie for your help. An additional doubt, when i change to pressure boundary at outlet, what is the difference in selecting: None, Zero Grad or TI/Lengh for the Turb. switch. My model is turbulent and i am using high reynolds ke with k/epsilon at inlet boundary.
|All times are GMT -4. The time now is 06:59.|