宇宙往還機の胴体形状が空力特性に及ぼす影響についての研究

摘要

An experimental and a numerical study were carried out to comprehend the flow fields around the body models whichare targeted as a fully reusable launch vehicle. In this study, three cross sectional configurations of the fuselage wereselected (a circle, a square, and an isosceles right triangle) and this made a much of a difference to the flow fields insubsonic, especially at high angle of attacks. It comes from the formation of separation vortex. As a result, an isoscelesright triangle model has best aerodynamic characteristics in terms of the stall problem. In supersonic, there can not beseen so much difference as in subsonic.