سال انتشار: ۱۳۸۸
محل انتشار: هشتمین همایش انجمن هوافضای ایران
تعداد صفحات: ۱۰
Hamid SAEEDIPOUR – Deputy Director in Aircraft Design, PhD, Meng, MBS. Beng, ITAvcen Limited, Patimas Tech. Center, Tech. Park Malaysia, Bukit Jalil, 57000 Kula Lumpor, Malaysia
The effects of yawed jet deflection changes to the exhaust nozzle angle have been studied for a vectored civil jet transport aircraft to see how the induced drag coefficient and factor of wing-jet combination interact with the yaw jet deflection. As experimental study has been coducted using a low-speed open-return wind tunnel with a closed test-section to test the externally adjustable exhaust nozzles on twin wing-mounted turbofan engines. A discussion of the theoretical and experimental work is given. Both circular and rectangular nozzles provide the jet deflections at various yaw angles ranging from -40 to 40 gegrees. The experimental results were used to fit analytical curves and to obtain suitable equations for the induced-drag factors of the wing-jet configuration.