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역분사 유동이 초음속 비행체에 미치는 영향에 대한 수치해석적 연구
서덕교(Duck Kyo Sea),서정일(Jeong Il Sea),송동주(Dong Joo Song) 한국전산유체공학회 2002 한국전산유체공학회 학술대회논문집 Vol.2002 No.-
TIn this study, the counter-jet flows which designed for improvement of aerodynamic performance of the blunt body vehicle have been analyzed. The variations of the drag force and jet penetration depth due to changes in the stagnation properties of counter jet flow such as total pressure, mach number, and total temperature. The counter jet flow, which is injected toward incoming supersonic freestream at stagnation region of blunt cone-cylinder vehicle, have been studied by using upwind flux difference splitting navier-stokes method. The changes in the stagnation pressure and Mach number resulted in large effects on the wall pressure and drag force, on the other hand the total temperature changes did not.