[Dyls]

Hi

I have been running CFX to validate an industrial fan. I seem to be getting pretty good results when looking at the brake horse power between the experimental and modeled results. When I look at the static pressure rise on the fan curve I am noticing that my dP static is over predicting the experimental values but if I were to compare my modeled dP total to the experimental dP static then I am right on.

Is there any reason why one would compare the dP total (difference in the total pressures at the inlet and outlet) from the CFX to the dP static from the experiment? I was given an explanation from an ANSYS help person that this might be appropriate in a detailed response that I don't fully understand.

Is there any reason to assume that I would be comparing the CFD dP total to the experiment's dP static? I imagine that it would have something to do with the fact that I am not modeling the entire test chamber used in the experiment (only the fan) and that there would be some implications to the BCs at the inlet and outlet. Inlet BC is mass flow and outlet BC is pressure.

Thank you.

[fluid23]

Can you post their response so we can try to make sense of it?