Volume Flow through Propeller

[Serrand]

I am looking for a crude way to obtain the volumetric flow of through a propeller immersed in water. My variables are Pitch diameter RPM density and chord of the propeller. Do I need a coefficient, or an I use the relation mass flow = density x Propeller Velocity x Area. And if I can use it, how would the pitch affect the area.
Thank you very much, this is not really my field that's why this is probably a very simple question.
Domenic

 

[GregLocock]

A*P*n*.8 at best , or .5 typically

There are hundreds of books on deisgning ship's propellers

here's a good start

http://en.wikipedia.org/wiki/Propeller

Cheers

Greg Locock

SIGlease see FAQ731-376 for tips on how to make the best use of Eng-Tips.

 

[WhiteRabbit]

Yes. I agree with Greg. Start there on the propeller. If you are trying to simulate an aerodynamic phenomenon between water and air then it will be a problem.

The Reynolds number will obviously be a factor but viscosity (dependant on all fluid factors: density, pressure, temperature, etc) will cause you major problems with the simulation.

What are you trying to do?

If you are trying to relate the correlation between aero and water check out the Harbor Branch Oceanographic Institute.

http://www.hboi.edu/index_02.html

We did research on Airfoils in water.

Good luck.