@techreport{oai:jaxa.repo.nii.ac.jp:00045169, author = {高島, 一明 and 沢田, 秀夫 and 青木, 竹夫 and 萱場, 重男 and TAKASHIMA, Kazuaki and SAWADA, Hideo and AOKI, Takeo and KAYABA, Shigeo}, month = {Aug}, note = {In order to study the cryogenic wind tunnel, in which high Reynolds number tests can be conducted, a small transonic cryogenic wind tunnel was constructed. The construction and the operational results are described in this paper. This small cryogenic wind tunnel, with a test section of 0.1m×0.1m, was built to ascertain the basic design specifications for a large transonic cryogenic wind tunnel which will be constructed in the future, and also to gain skill in operating the cryogenic wind tunnel. The capability of this wind tunnel is from stagnation temperature down to -173C, for Mach numbers ranging from 0.4 to 1.02 and for a unit Reynolds number up to 1.3×10(exp 6)/cm with more than one hour running time. In this paper, the design concept is first briefly given, then, the complete system i.e. the wind tunnel, the liquid nitrogen supply system, the gas nitrogen exhaust system, the thermal insulation device, the fan and the drive motor and the instrumentation and operating system, are described in detail. Finally, the experimental results are discussed. The conclusion is that cryogenic wind tunnel operation can be safely and successfully conducted., 資料番号: NALTR0910000, レポート番号: NAL TR-910}, title = {Trial Manufacture of NAL 0.1m×0.1m Transonic Cryogenic Wind Tunnel}, year = {1986} }