航空发动机超轻高效换热器的发展与应用展望

Based on the specific design requirements of heat exchanger in aviation and aerospace field, existing data were investigated and analyzed. Combined with the engineering practice, the main methods to improve the performance of heat exchanger, including performance optimization method and the interdisciplinary exploration of new types of heat exchangers, were introduced. The branch and distribution of current research on various heat transfer enhancement were summarized. Structure-based enhanced heat transfer was still taken as one of the main research directions, and some novel structures were introduced. In the exploration of new types of heat exchangers, the concepts of smart heat exchanger and chemical reaction heat exchanger were introduced, elaborating the design of heat exchange under multiple working conditions and high heat flow. Among them, the heat transfer enhancement coefficient of the smart heat exchangers can reach up to 2. Some new concepts, including evaluation indicator, uniform-mixed flow and operating weight produced in the design of heat exchanger, were analyzed and explored, which can supplement and improve the design system. Finally, the application prospect of heat exchanger in aviation and aerospace was presented.