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http://dx.doi.org/10.5139/JKSAS.2012.40.11.927

Experimental Study of Thrust Vectoring of Supersonic Jet Utilizing Co-flowing Coanda Effects  

Yoon, Sang-Hun (한국항공대학교(원) 항공우주 및 기계공학과)
Jun, Dong-Hyun (한국항공대학교(원) 항공우주 및 기계공학과)
Heo, Jun-Young (한국항공대학교(원) 항공우주 및 기계공학과)
Sung, Hong-Gye (한국항공대학교 항공우주 및 기계공학부)
Lee, Yeol (한국항공대학교 항공우주 및 기계공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.40, no.11, 2012 , pp. 927-933 More about this Journal
Abstract
The characteristics of two-dimensional supersonic coanda flow was experimentally investigated. For various ratios of slot height to coanda wall's radius of curvature, surface roughnesses, and jet stagnation pressures, the characteristics of the supersonic coanda flow such as shock structures and hysteresis were observed by flow visualization. It was found that the characteristics of hysteresis of the coanda jet was related to the surface roughness of the coanda wall. The study was further extended for application of the tangentially injected coanda jet to control co-flowing highly compressible main jet direction. It was noticed that the stagnation pressure of the main jet as well as the ratio of the slot height to coanda wall's radius of curvature wall was an influencing factor in the performance of the fluidic thrust vectoring method.
Keywords
Coanda Effect; Thrust Vector Control; Co-Flow; Supersonic; Shock Wave;
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