국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Performance Enhancement of a Vertical Tail Model with Sweeping Jet Actuators
저자	Seele, Roman;; Graff, Emilio;; Lin, John;; Wygnanski, Israel
Keyword	ACTUATORS;; AIRCRAFT CONTROL;; CONTROL SURFACES;; FLAPPING;; FREE FLOW;; JET FLOW;; LIFT DEVICES;; RUDDERS;; TAIL ASSEMBLIES;; TRAILING EDGES;; YAW
URL	http://hdl.handle.net/2060/20130003329
보고서번호	AIAA Paper 2013-0411
발행년도	2013
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Active Flow Control (AFC) experiments performed at the Caltech Lucas Adaptive Wall Wind Tunnel on a 12%-thick, generic vertical tail model indicated that sweeping jets emanating from the trailing edge (TE) of the vertical stabilizer significantly increased the side force coefficient for a wide range of rudder deflection angles and yaw angles at free-stream velocities approaching takeoff rotation speed. The results indicated that 2% blowing momentum coefficient (C(sub mu) increased the side force in excess of 50% at the maximum conventional rudder deflection angle in the absence of yaw. Even C(sub mu) = 0.5% increased the side force in excess of 20% under these conditions. This effort was sponsored by the NASA Environmentally Responsible Aviation (ERA) project and the successful demonstration of this flow-control application could have far reaching implications. It could lead to effective applications of AFC technologies on key aircraft control surfaces and lift enhancing devices (flaps) that would aid in reduction of fuel consumption through a decrease in size and weight of wings and control surfaces or a reduction of the noise footprint due to steeper climb and descent.