Guest

Airfoils -- The Eppler <Code>

Tue Jan 11, 2000 4:39 am

I long ago posted a topic regarding pressure fields in airfoils, and where drag is the primary resistance faced by aerodynamic structures like fixed wing when given velocity distributions. I also insisted that the intense vortex created around the wing of a mounted engine would be great enough to break the boundary layer of the wing's airfoil and create instability on the aircraft. Since everyone that responded to the post and I concluded that in real life that doesn't happen mainly because of a certain separation from that boundary layer with the outside vortex. Anyway, enough said, I was told by someone during these holidays that there is a computational method of measuring such differences called the Eppler code , which can measure the integral boundary layer and calculate things such as drag polars. It will artificially tell you when the threshold is met and where a stall situation can be avoided. Anyone with information on this "program" please reply cause I need some more detail on this. Thanks in advance.

PS: It's nice to be back to this forum after a nice break in the jacuzzi. Hey I needed some off duty time... Anyway...

Cheers,
Leo-ERJ

Popular Searches On Airliners.net

Top Photos of Last:   24 Hours  •  48 Hours  •  7 Days  •  30 Days  •  180 Days  •  365 Days  •  All Time

Military Aircraft Every type from fighters to helicopters from air forces around the globe

Classic Airliners Props and jets from the good old days

Flight Decks Views from inside the cockpit

Aircraft Cabins Passenger cabin shots showing seat arrangements as well as cargo aircraft interior

Cargo Aircraft Pictures of great freighter aircraft

Government Aircraft Aircraft flying government officials

Helicopters Our large helicopter section. Both military and civil versions

Blimps / Airships Everything from the Goodyear blimp to the Zeppelin

Night Photos Beautiful shots taken while the sun is below the horizon

Accidents Accident, incident and crash related photos

Air to Air Photos taken by airborne photographers of airborne aircraft

Special Paint Schemes Aircraft painted in beautiful and original liveries

Airport Overviews Airport overviews from the air or ground

Tails and Winglets Tail and Winglet closeups with beautiful airline logos