What went wrong?-Panick

Julie

Hi guys,

I posted my problem a while ago. WHile some do not understand my question,some agrees that my problem is because of my meshing.

To make long story short. I inputed my inlets as Velocity_inlets and keyed in the value of 0.625m/s as inlet velocity in y componenet. But after convergence, when i did a report/surface intergral/facet average/velocity/y component,the value I get is not even near 0.625m/s, in fact I got about 0.55m/s, however the mass flow rate at that inlet calculated by fluent was correct as shown in report/fuxes.

SO was the results at the outlets, which differs even more from the actual value.I wondered if it was to do with the mesh.So after refineing the mesh, from the actual 0.2intervel size at all the edges of my model to 0.1 size and even decrease the convergence criterion value. And there was improvement, but still not enough. I got 0.59m/s from the original 0.55m/s.

Was it REALLY the grid? How much is enough? I cant reduce it any further, my mesh file will be too huge. Was it Really the grid, or have i done something wrong? Anyone experienced my problem b4??