Suppose the pump of Prob. 1467 has some reverse swirl at the inlet such that a1 5 210
Chapter 14, Problem 14-69(choose chapter or problem)
Suppose the pump of Prob. 1467 has some reverse swirl at the inlet such that a1 5 210 instead of 0. Calculate the net head and required horsepower and compare to Prob. 1467. Discuss. In particular, is the angle at which the fluid impinges on the impeller blade a critical parameter in the design of centrifugal pumps? Does a small amount of reverse swirl increase or decrease the net head of the pump in other words, is it desirable? Note: Keep in mind that we are neglecting losses here.
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