Re: How to calculate the force ?

On 31 Aug 2005 11:01:28 -0700, "Externet" <externet@xxxxxxxxxxx>
wrote:

>Thanks, John.
>That may do the start of some aproximate calculation, as the edge
>effects as you say, can yield widely differing figures. Is the
>coeficient Cd missing there ?
>If you have other formulas applicable to water wheels, would be
>welcome. Am trying to replace a 50HP diesel engine with a paddle wheel
>to pump river water for irrigation... back to third world technology...
>thanks to Mustafa & speculating friends oil co.
It's going to be tough. Assume water at .5m/s and the paddle dragging
at only half that you get
F*Vel = .042Hp = 31W
John Polasek
http://www.dualspace.net
.