my take on wings
05-14-2011, 05:04 AM
#376
RE: my take on wings
ORIGINAL: Tim Green
Oh geeze - here we go again. In the face of all logic. And all evidence to the contrary. oh well ... the net is an interesting place.
ORIGINAL: rmh
forget the wash - lift is simply and solely due to pressure differences
IF there is no pressure difference there is no lift
if the moving panel has all th air evacuated on underside (OR a lower pressue than on upper surface ) net effect is no lift
Downwash is simply a waste product
measuring it is like trying to assess the strength of a horse by measuring the amount of manure produced .
ORIGINAL: Rick.
thanks shoe , rmh, obviously this thought experiment is designed to eliminate 'air under the wing' - so what i'm getting at is does this show that lift is possible even when air can't be flowing down below the airfoil? i.e. no down wash...........
thanks shoe , rmh, obviously this thought experiment is designed to eliminate 'air under the wing' - so what i'm getting at is does this show that lift is possible even when air can't be flowing down below the airfoil? i.e. no down wash...........
IF there is no pressure difference there is no lift
if the moving panel has all th air evacuated on underside (OR a lower pressue than on upper surface ) net effect is no lift
Downwash is simply a waste product
measuring it is like trying to assess the strength of a horse by measuring the amount of manure produced .
Boy, I missed that.
05-14-2011, 01:51 PM
#377
RE: my take on wings
Tim still thinks that the downwash somehow pushes the wing up...Even when, by definition, it's behind the wing, and can have no effect on it. Logic? These are very shaky grounds we tread upon...
Evan, WB #12.
Evan, WB #12.
05-29-2011, 04:27 AM
#379
Senior Member
Join Date: Apr 2004
Location: Ashtabula,
OH
Posts: 215
Likes: 0
Received 0 Likes
on
0 Posts
RE: my take on wings
ORIGINAL: pimmnz
Tim still thinks that the downwash somehow pushes the wing up
Tim still thinks that the downwash somehow pushes the wing up
And, there might be scent of trolls in the air. No?
05-29-2011, 08:52 AM
#380
RE: my take on wings
ORIGINAL: Tim Green
Well - someone got something right for once.
And, there might be scent of trolls in the air. No?
ORIGINAL: pimmnz
Tim still thinks that the downwash somehow pushes the wing up
Tim still thinks that the downwash somehow pushes the wing up
And, there might be scent of trolls in the air. No?
05-29-2011, 08:43 PM
#381
Join Date: Oct 2002
Location: Chilliwack, BC, CANADA
Posts: 12,425
Likes: 0
Received 22 Likes
on
19 Posts
RE: my take on wings
After 16 pages of postings I believe this thread has run it's course and that we are all just repeating what has been already said and standing more firm on our varous positions. To avoid any more needless confrontations the thread has been locked.
