Northwestern Polytechnical University, China

Speech Title:
Research Progress and Reflections on Ultra-Wide-Range Aerospace Combined Propulsion
 
Abstract:
Hypersonic aerospace flight platforms represent a strategic high ground for technological competition among major powers, and ultra-wide-range aerospace combined propulsion is the core power solution supporting reusable horizontal take-off and landing vehicles covering full flight speed domains. The US, Europe and Japan have advanced technical routes including RBCC, TBCC and pre-cooled SABRE, while domestic research institutions led by Northwestern Polytechnical University have achieved a series of key technological breakthroughs. Focusing on five major research orientations: high performance, adaptive flow channels, lightweight structures, intelligent control and low cost, this presentation systematically introduces advances in core technologies such as thermodynamic cycle optimization, high-efficiency flame stabilization, deformable flow passages, active thermal cooling and intelligent combustion regulation, and presents flight verification results of Feitian-1. It analyzes current bottlenecks restricting the development of combined propulsion, and puts forward development ideas centered on the PEALS technical system and building an industry-university-research collaborative innovation ecosystem under the new nationwide system, providing references for the engineering research of domestic aerospace combined propulsion and the construction of a powerful aerospace nation.