| Abstract:Variable cycle engine (VCE) is the development direction of the aeroengine. Compared with traditional aeroengines, the
afterburner of VCE is equipped with a typical variable-geometry mechanism, the rear variable area bypass injector (RVABI), to meet the
whole engine requirements of the aerodynamic matching, thrust, and fuel consumption. The development history, arrangements, and
structural forms of RVABI in VCE are discussed, the structural and functional characteristics are analyzed, and the influence on the
aerothermal performance and the size of the afterburner, engine thrust, and specific fuel consumption are elucidated. According to the
development history and technical characteristics of RVABI, key technologies such as quick response, precise control, and high reliability
that need further study in terms of performance, structure, and control are pointed out. The discussions and analyses aim to provide refer?
ences for RVABI performance and structure design of variable cycle engines and the future turbine-based combined cycle engines. |
