Let me further explain the situation and it will make more sense. I am referring to data that is collected in a test lab and trying to calculate the 1800 rpm performance of a bowl assembly based on 1200 rpm test results. The equation being used is shown below along with a Figure copied from...
I have a question related to testing a vertical multi-stage pump when pumping clean water. The Hydraulic Institute calculates Total Head by adding gage pressure, gage datum, and velocity head. If the pump test is performed at 1200 rpm and we wish to know the calculated results for 1800 rpm...