高超声速推进再生冷却研究综述

The history of regenerative cooling technology used for hypersonic propulsion and its basic characters were briefly introduced. According to the basic characters of hypersonic propulsion, main paradoxes and difficulties in developing the regenerative cooling technology were analyzed from different aspects. And on the basis of the analysis, the detailed review of the studies on solving the problems of the lacking cooling capacity of fuel, non-uniform distribution of heat load and coolant flow, dynamics of the coolant flow in the cooling channel was carried out, including how to improve the cooling capacity, figuring out the mechanism of supercritical cooling flow with cracking reaction, heat transfer enhancement and the dynamic heat transfer mechanism. At the end, the authors gave their opinions on the further development of regenerative cooling technology for hypersonic propulsion, thinking that deeper studies based on the multi-discipline research and current studies such as high heat sink fuel technology, combined cooling technology will be the best way.