Fluidic-Control

[KJ_Lesnick]

What exactly is this... I have done searches on google and the best I've found basically seems to do something with using the shape of the aft of the plane and the nozzle combined with temperature changes in the exhaust duct to vector the exhaust.

I'm guessing it has to do with which way the exhaust expands. But wouldn't the cooling take energy out of the gas?

 

[flateric]

Try to read this, including pdf's http://www.billcrowther.net/research/Flow_control/FTV/FTV.html

 

[KJ_Lesnick]

Okay, I sort of understand the concept. Even works for control surfaces and flaps apparently

 

[flateric]

Another good paper http://pubs.nrc-cnrc.gc.ca/casj/casj48/q02-020.pdf

 

[dumpster4]

"Jetoptera is positioning its Fluidic Propulsive System as a serious contender to conventional helicopter and ducted fan propulsion, citing progress shared through AFWERX, DARPA, and internal test reports. The Washington-based firm says the technology relies on a compact gas generator that feeds blade-free fluidic thrusters, which entrain outside air rather than cutting it with rotors. Engineers familiar with the demonstrations note that the resulting acoustic footprint resembles broadband wind noise rather than the sharp, rhythmic signature typical of low-altitude rotorcraft. This characteristic has drawn interest from defense planners studying mobility in urban terrain."

See:

https://www.armyrecognition.com/new...igned-for-safer-quieter-high-speed-operations

 

[TomcatViP]

OMG

No NO NOOOOO Not that again!