X-Mozilla-Keys:                                                                                 
Fredmoreno@aol.com wrote:

Wing radiators have a multitude of practical problems such as differential
thermal expansion, piping, weight (only one side transfers heat) and such.
The second  problem is that the heat transfer coefficients are simply not
high enough where the boundary layers get comparatively thick.  Thin boundary
layers are formed behind knife edges and stay ultra thin only a short
distance behind the knife edge   --  just like a radiator with scads of
offset fins that are 0.006 inches thick.  Technology has marched forward.....
  and we can be grateful.

F

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