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Ed,

Because of insufficient room under cowl, many are using the chisel or tapered (my name for it) shaped chamber rather than the bell shaped. To me, it looks to be, like one side of the bell shaped chamber, or like squeezing a bell shape down to one side. Have you studied this approach and do you think it's comparable.

George (down under)

Hi Gang

I came across a abstraction of K&W’s theory of the Streamline duct that I put together a number of year ago. While it is my interpretation and therefore subject to error, I have not found anything in the intervening years that indicates a misunderstanding. While it is not exactly light reading, I think it is easier to follow than K&W.

In any case, I thought I would make it available to promote understanding and discussion {:>)) of one approach to cooling our installations.

This paper targets four topic areas:

Diffusers In General
StreamLine Duct
Importance of Inlet to Core area ( A_i/A_B ratio)
Truncation of StreamLine Duct

Best Regards

Ed

Ed Anderson

Rv-6A N494BW Rotary Powered

Matthews, NC

eanderson@carolina.rr.com

http://www.andersonee.com

http://www.dmack.net/mazda/index.html

http://www.flyrotary.com/

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.rotaryaviation.com/Rotorhead%20Truth.htm

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