Hi Will,
The two books I recommend are:

Aerodynamics of Propulsion. D. Kuchemann & J. Weber McGraw-Hill Book
Company Inc. 1953 Lib. Of Cong. Card # 52-6541 The bible of the
aerodynamic design of scoops and diffusers. Also covers ducted
propellers. Out of print. Hard to find.


Compact Heat Exchangers. W.M. Kays and A. L. London Kreiger Publishing
Company. Malabar Florida. 1998 The bible of heat exchangers.
Some work on ducts (called headers in this book). Very comprehensive.

Every few years the American Society of Mechanical Engineers holds
symposiums on heat transfer. Same for the Institute of Mechanical
Engineers AKA IMechE London and the SAE. Lately the automotive industry
is getting so competitive this kind of info is drying up.

Here are a few excerpts. The Kays and London simple wedge shaped
diffuser seems  to be the best for mounting the rad under the cowl. More
in the next message.

Paul Lamar

Matt Prather wrote:

So the shape of K_M_FLOW_PATT_IN_BAD_DUCT.GIF  is like the 'b' curve in
"KM-duct-curve.gif"?

The rate of increase of cross sectional area of the duct should increase
(or at least be positive) from the inlet of the duct all of the way to the
face of the heat exchanger?

Very interesting.

Matt-
VE N34RD, C150 N714BK

Correct Matt.

Paul Lamar
 
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