Quote:
Originally Posted by kach22i
As previously posted.
https://www.nasa.gov/feature/langley...rcraft-concept
Unrelated:
How do they get away with the related ground pressure interface issues when doing half models on the floor?
Nov. 30, 2012
Ultra High Bypass (UHB) Nacelle Semi Span
https://www.nasa.gov/centers/ames/or...1600-1200.html
Also, by putting the model on it's side wouldn't that upset gravity's effect on air particles?
This configuration has to have an advantage, otherwise they would use the wall as I've seen done elsewhere.
I do see that they can rotate the model to change the angle of attack, maybe that's just where the turntable is? |
*they're presuming laterally-symmetrical flow with zero yaw.
*the angle-of-attack is the reason for the model position on the turn table.
*any wall-associated boundary layer effect interference can be nullified with suctioning off the boundary layer.
*we'd want to review fluid mechanics,but since all the flow is occurring inside a 'pipe',the gravitational effects to the fluid can be ignored.