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Aboout prop efficiency

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Old   September 1, 2013, 02:51
Default Aboout prop efficiency
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Hello,

I try to simulate a propeller NACA 6623-A published in NACA 650, 1939. But my results are different from the data. The efficiency is only 0.42 at advance radio=0.65 as well as that from the data is 0.8.

The following is how I calculated the efficiency:
force_z()@BladeSurface
torque_z()@BladeSurface*25.24*2*3.1415926
ForceZ*massFlowAve(Velocity in Stn Frame w)@Inlet/Power
(the rotation speed of the propeller is 1514 rpm)

If CFX-pre(.def) setting is need, please tell me your e-mail.

Thank you very much.

Liu
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effieciency, propeller


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