MJCronin, this was a question in a sample PE exam. I did it by the first equation to arrive at pump power when I looked at answer they have used affinity laws. So I got confused. But yes in reality we can do the approach what you are suggesting
I have a question that I am stuck, something that's confusing me.
Looking at pump power needed per the first law, it is directly related to GPM so if the flow is reduced by 50% then brake HP is reduced by 50%, but per the second law , it is to the power of 3 . Not sure what I am missing. Any...
