glenmthompson
Well Known Member
While scalding my hand and frying some eggs on Jim's RV-10's tunnel today (Long story, see other thread in the 10 section), I noticed a very curious thing as we flew through some rain, I noticed that the top of the flap was dry.
Now Jim has a pretty tight fit , and has teflon tape at that intersection. But I noticed as the rain hit the trailing edge of the top skin, it disapeared! Leaving the top of the flap totally dry. Now, the trailing edge of the flap had copious amounts of rain trailing off, either from the bottom of the wing, and/or from the rain that maybe dropped under the flap at the wing top skin/flap intersection. BUT..If the rain DOES indeed drop below the flap at this intersection, then how is that possible, seeing as the bottom of the wing is "high pressure"?
My question is 2 parted..**
1. Where does the water go?
2. Is this an area where say, maybe vortex generators might allow the boundry layer to reattatch, allowing for less drag?
Come on my fellow engineers!! Wadda ya think?
Glen
Now Jim has a pretty tight fit , and has teflon tape at that intersection. But I noticed as the rain hit the trailing edge of the top skin, it disapeared! Leaving the top of the flap totally dry. Now, the trailing edge of the flap had copious amounts of rain trailing off, either from the bottom of the wing, and/or from the rain that maybe dropped under the flap at the wing top skin/flap intersection. BUT..If the rain DOES indeed drop below the flap at this intersection, then how is that possible, seeing as the bottom of the wing is "high pressure"?
My question is 2 parted..**
1. Where does the water go?
2. Is this an area where say, maybe vortex generators might allow the boundry layer to reattatch, allowing for less drag?
Come on my fellow engineers!! Wadda ya think?
Glen