Flow Analysis around Spaceplane for Airframe Engine Integration by CFD

Abstract

Research was conducted on such coupling characteristics as drag, lift, and pitching moment between the airframe and engine gas exhausts for a wide range of flight Mach numbers from an experimental aspect and a computational aspect. In case of no fuel injection, numerical results were in good agreement with the experimental results. Thus, the effects of fuel injection on the aerodynamic characteristics were numerically investigated, and a thrust margin was computed as a function of rocket conditions to achieve positive net thrust.