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Ed, the Y axis "label" was somewhat blurred in my computer's rendering of
the .bmp image. What are the words on the Y axis label?
David Carter
----- Original Message ----- From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Tuesday, December 09, 2003 4:13 PM
Subject: [FlyRotary] K&W Streamline duct vs 7 deg optimum duct
Attached is a plot of the Streamline Duct out of K&W vs the optimum 7 Deg
diverging duct. Scale on vertical and horizontal axis is in inches.
According to K&W there is apparently no separation of flow from the duct
wall until the maximum angle is exceeded. Max angle is different
depending
on the ratio of your intake area to your core face area. This plot is for
a
GM core 9" high.
The coordinates provided by K&W have been normalized on both axis, so you
have to use those normalized values to scale you actual/real values. But,
you can do it for any size core.
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