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> I suppose even with a streamline-diffuser (84% revocery of pressure).
Question is with what pressure to you start out? Ambient? To what baseline
to you recover the 84%?
The 84% figure was based on the amount of theoretical dynamic pressure recovery (1/2pV^2) possible based on the air velocity in the air duct. A lower/higher dynamic pressure would therefore effect how much pressure would be recovered. High duct velocity results in more skin friction but less tendency for the wall boundary layer to separate - so as aways - a trade off.
Ed
If the differential pressure is low enough - this obviously works fine!
Next question: How can one calculate/computer analyze/test all different
variations efficiently before starting to cut metal (or sticking glasfibers
together....)?
On the particular plane above, also observe the rather "big radius"-nose
compared to other "slicker look"-pointier noses of Eze siblings. The man
says research shows his noseform is the right one until you hit trans-sonic
speeds.....
Anyone knows a source for reports on the difference between NACA-low
pressure cooling systems versus Ram pressure systems? The real interist
thing would of course be the Drag-difference at the same cooling
results.....
Thomas J.
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