This is my first time on this forum.
I see some interesting discussions so I thought let's give it a try..
I was wondering how to determine the rotations / speed of a propeller according to a certain flow.
In fact it's the other way around when you compare it to a fan study
I'm working for a customer who is selling Flow meters.
For a new model I need to analyse this and optimize a part (red color) that is causing the flow to swirl before it "hits " the propeller.
A good swirl results in a well postioned flow and high efficiency of the flow meter.
Can somebody help.