Hopperdhh(at)aol.com
Guest
|
 Posted: Sun Nov 12, 2006 7:01 am Post subject: Pressure profile -- was Drain holes |
 |
|
In a message dated 11/11/2006 7:47:24 PM Eastern Standard Time, dreel(at)cox.net writes:
| Quote: | The site picture of air pressure around a flying wing at
http://websites.expercraft.com/n51pw/index.php?q=log_entry&log_id=5255
is pretty puzzling. I would think a pressure greater than that atop the
wing would have to exist under the wing at positive angles of attack to
produce lift. The Bernoulli principle would explain the negative pressure
atop the wing. But the site picture shows a negative pressure beneath the
wing that appears about equal to that on top. ????
Dave |
Dave,
I thought the picture was really amazing. It is the DIFFERENCE in pressure that causes lift. Also, don't forget that Neuton is right too. The air that leaves the wing has to have downwash, which it will since the air on top got speeded up (more than the air on the bottom). At least that's how I look at it.
OK, lets hear from the real experts!
Dan Hopper
RV-7A
[quote][b]
| | - The Matronics RV-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV-List |
|
|
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
