A comparison of propeller and centrifugal fans for circulating the air in a wind tunnel

Fred E. Weick
naca-tn-281
Mar 1928


The tests described in this paper afford a direct comparison of the efficiency and smoothness of flow obtained with propeller fan and multiblade centrifugal fan drives in the same wind tunnel. The propeller fan was found to be superior to the centrifugal fan in that the efficiency was about twice as great, and the flow much smoother.

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