NUMERICAL INVESTIGATION ON THE SAFE SUPERSONIC AIR-LAUNCHING ROCKET SEPARATION FROM THE MOTHER PLANE

안전한 초음속 공중발사를 위한 삼차원 로켓 주위의 모선분리 유동 해석

An analysis is made of flow and rocket motion during a supersonic separation stage of air-launching rocket from the mother plane. Three-dimensional Euler and Navier-Stokes equations are numerically solved to analyze the steady/unsteady flow field around the rocket which is being separated from two cases of mother plane configuration: one is an idealized ogive-cylinder body and the other is a real F-4E Phantom. The simulation results clearly demonstrate the effect of shock-expansion wave interaction between the rocket and the mother plane. As a result, a design-guideline of supersonic air-launching rocket for the safe separation is proposed.