低温风洞的发展现状与关键技术（英文）  

Current status and key technologies of cryogenic wind tunnel

作　　者：张振[1] 牛玲[2] 

机构地区：[1]中国航天空气动力技术研究院,北京100074 [2]北京航天试验技术研究所,北京100074

出　　处：《低温工程》2015年第2期57-62,共6页Cryogenics

摘　　要：对比分析了提高风洞试验雷诺数的几种技术途径及低温风洞的优势,回顾了低温风洞发展现状,详细描述了近期发展的低温风洞新型制冷方法,对低温风洞发展中存在的关键技术问题(包括工作温度选择、制冷系统、绝热系统、模型设计及试验参数测量等)进行了综合分析,最后对低温风洞在中国的应用前景进行了探讨。Different methods to increase Reynolds number,as well as the advantage of cryogenic wind tunnel,were comparatively analyzed.The overall development status about cryogenic wind tunnel was reviewed,the newly-developed novel cooling techniques for cryogenic wind tunnel were introduced in detail,and some key technological issues during the development of cryogenic wind tunnel（including selection of work temperature,refrigeration system,thermal-insulation system,model design and test data measurement,etc）were analyzed synthetically.Finally,the application perspective of cryogenic wind tunnel in China was discussed.

关 键 词：低温风洞 制冷技术 高雷诺数 试验设备 

分 类 号：TB663[一般工业技术—制冷工程] V211.7[航空宇航科学与技术—航空宇航推进理论与工程]