Proceedings of the KSME Conference (대한기계학회:학술대회논문집)
- 2004.04a
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- Pages.1637-1642
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- 2004
Experimental and Computational Studies of the Fluidic Thrust Vector Control Using a Counterflow Concept
Counterflow 개념을 이용한 추력벡터 제어에 관한 실험적 및 수치해석적 연구
- Published : 2004.04.28
Abstract
Experimental and computational studies were performed to investigate the effectiveness of a thrust vectoring method using a counterflow concept. A shadowgraph method was used to visualize the supersonic jet expanded from a two-dimensional convergent-divergent nozzle and deflected by a now suction. The primary nozzle pressure and suction nozzle pressure ratios are varied between 3.0 and 5.0, and between 0.2 and 1.0 respectively. The present experimental and computational results showed that, for a given primary nozzle pressure ratio, a decrease in the suction nozzle pressure ratio produced an increased thrust vector angle, and during the change processes of the suction pressure, a hysteresis effect of the thrust vectoring was found through the wall pressure distributions.
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