[kliff]

i am conducting cfd of a small submersible water pump (Model Resun king-2) in attempt to improve performance(flow rate, reliability) of the impeller. i have modeled the original pump on solidworks. currently i am trying to validate the model against the real pump. the pumps speed is fixed at 3000rpm nothing can be varied on the pump.. the pump currently operates at the bottom of a 3ft pond and is used for re circulation. i very the depth at which the pump operates to see how it affects flow and head..from conducting the real experiments, my cfd model produces somewhat accurate flow but not head.,, boundary condition used at the intlet is static pressure of atm + 3ft depth and at outlet discharge piping is only atmospheric pressure. can someone help me? i can provide all that i have done so far.