Can Dan analyze this?  It is a pusher LEZ, this is a very approximate
drawing of my oil cooler installation.  I've probably tried a dozen
different things over the years and oil still doesn't cool very well.
The exit on top of the cowl is now basically open, just several  "fixed
cowl flaps" at a 45 degree angle.

Perry

Perry, what is the distance from the scoop opening to the leading edge of
the strake? That will have a strong effect on the boundary layer thickness
and consequently the simulation. Perhaps you should redraw it to scale.

Paul Lamar

Perry Mick wrote:

It is about one inch and I did draw it to scale, but from memory. Strake
is about 10" thick. Inlet opening is 5" x 5".

Still need the horizontal distance from the opening to the leading edge of the strake.
Very important to see if the P51 type boundary layer bypass is working.
Also the airflow over the top of the strake should be included.

Paul Lamar
 
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