|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||24/4207 ; 24/413.0 ; 24/420.4|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 38 인용 특허 : 14|
An acoustic jet disposed within an aerodynamic surface, such as a wing or a blade, has a resilient wall supporting a mass. Vibrations of the blade cause oscillatory pressure waves within the acoustic jet, the nozzle of which directs fluid particles having high momentum flux essentially tangentially into the boundary layer of the suction surface of the blade, the resonant cavity of the synthetic jet being replenished with particles having low momentum flux drawn from the flow in a direction normal to the surface, thereby to provide a net time averaged flo...
[ We claim:] [1.] A structure which vibrates when in operation, comprising:a surface forming a part of said structure and having an aerodynamic profile;a resilient membrane having a concentrated mass disposed thereon;a chamber disposed within said structure, said membrane forming a flexible wall of said chamber, said chamber being located adjacent to a boundary layer separation point of said surface; anda nozzle connecting said chamber with said surface in the vicinity of said boundary layer separation point, vibration of said structure when in operation...