Key technology for model access system in cryogenic wind tunnel

CHEN Jianbing; LIU Bolin; CHEN Wanhua; LIAO Daxiong; LAI Huan

doi:10.11729/syltlx20210140

Volume 36 Issue 1

Mar. 2022

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Journal of Experiments in Fluid Mechanics > 2022 > 36(1): 37-43. > DOI: 10.11729/syltlx20210140

CHEN J B，LIU B L，CHEN W H，et al. Key technology for model access system in cryogenic wind tunnel[J]. Journal of Experiments in Fluid Mechanics, 2022，36（1）：37-43.. DOI: 10.11729/syltlx20210140

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Key technology for model access system in cryogenic wind tunnel

1.
Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang　621000, China
2.
High Speed Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang　621000, China
3.
State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang　621000, China

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Received Date: October 14, 2021
Revised Date: November 07, 2021
Accepted Date: November 28, 2021
Available Online: March 01, 2022

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Abstract

Abstract

The model access system is an important part of the cryogenic wind tunnel, and it is the core system to realize low temperature model replacement. The model access system of the cryogenic wind tunnel has the characteristics of complex structure, large scale, high functional integration and high requirements for environmental conditions. By contrasting overseas the design of the model access system of the cryogenic wind tunnel and introducing the domestic current situation of related technologies, the key technologies of the design for the model access system of the cryogenic wind tunnel are discussed in this article, such as the large volume and low dew point air drying system, temperature regulating system with a wide temperature range, large-tonnage and high precision model cart, large lock door, moisture emission control in dry space, etc.. The technical difficulties and research approaches of each aforementioned key technology are expounded, respectively. Finally, some proposals are offered for the design of the model access system of the cryogenic wind tunnel.
- cryogenic wind tunnel,
- model access system,
- key technology,
- low dew point

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