Recent content by datf

for the first question, if we equate the original and final head coefficient Ch1 = Ch2 --> gH1/(N^2 D^2) = gH2/((2N)^ 2 D^2) --> H2 = 4H1. but is it fine if i simply equate the two original and final head coefficient? I'm quite sure the flow rate is the same for both pumps (statement I) for the...

Hi guys, please help me with these questions. I've been racking my brain for days but I'm not sure of the answers. 1) (Assume that pump similarity laws are valid and that the effects of Reynolds number (Re) are small.) A centrifugal pump operating at speed N is combined in series with an...