大型低温高雷诺数风洞及其关键技术综述

随着航空运输业的发展，先进飞行器的精细化设计要求有飞行雷诺数下的气动数据为支撑。大型低温高雷诺数风洞（如ETW、NTF）是真实再现飞行器飞行状态流动特性的最佳地面试验设备。文中归纳总结了大型高雷诺数风洞的实现途径和风洞型式，分析了当前低温风洞的国内外现状，深入剖析了大型连续式低温风洞设计建设的关键技术及解决措施，对我国自行开展大型低温高雷诺数风洞的设计建设具有重要参考意义，并对成功建设我国大型低温高雷诺数风洞进行了展望。

Review on large-scale cryogenic wind tunnel and key technologies

With the development of air transportations,detail-optimized designs of advanced aircrafts demand aerodynamic data under the flight Reynolds number conditions.Large-scale cryogenic wind tunnels,such as ETW and NTF,are the best ground testing facilities to obtain aircraft flow characteristics in the real flight conditions.To facilitate the development of large-scale high Reynolds number wind tunnels,the achieving means and types are summarized,the current developing status is discussed,the key technologies and solutions are analyzed in depth for design methodologies and construction concerns.Finally,the future designs and constructions of largescale continuous cryogenic wind tunnel in China are prospected.