|
Al,
My suggestion was to extend the entrance edge of the baffles forward and
and below the wing perhaps an inch into the airstream and hopefully below
the boundry layer......To do so might also require the the entry edge of the
scoop to be extended and a larger radius added to properly capture the air.
Kelly Troyer
Kelly wrote:
Uneducated guess but I will vote for a boundry layer problem......How about extending
the baffle below the bottom of the wing an inch or two and retest.......It will be dirty and
draggy but if that helps delta T it can be cleaned up with a proper installation......IMHO
That’s an educated guess, or better yet, a fact – that it is A problem. But I’m still thinking it is not THE problem since there is 9.5” H2O dynamic pressure 12 – 5/8” off the surface, which is in the BL, and should represent something like the average velocity into the 1 ¼” opening of the scoop. Not sure what you mean extending the baffle below the bottom of the wing an inch or two? Do you mean opening the scoop up wider? I think making a larger radius on the entry edge of the scoop could help, and would give an indication whether opening the scoop more would help.
Al,
|