이중연소 램제트엔진의 통합 설계 기법과 작동 특성 연구

Integrated performance analysis of a DCR (Dual Combustion Ramjet) engine, the combination of ramjet and scramjet engines, has been conducted. DCR engine includes a supersonic intake, a supersonic-exit isolator, supersonic and subsonic diffusers, a subsonic combustor with nozzle, a supersonic combustor and a nozzle. The perfomance models of each component and integrated engine have been developed and varified with experimental and numerical results. The engine performance of a DCR engine during acceleration and cruise flights at altitudes of up to 25km from 10km has been investigated in its flight operationable range.