Sounding rocket experiment on chill-down process with liquid nitrogen in a complex channel

Wataru Sarae, Kiyoshi Kinefuchi, Daisuke Yabusaki, Daizo Sugimori, Takeshi Fujita, Koichi Okita, Yutaka Umemura, Keiichiro Fujimoto, Hideyo Negishi, Hiroaki Kobayashi, Takehiro Himeno, Tetsuya Sato, Satoshi Nonaka

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

In the present experiment, by using the sounding rocket’s sub-orbital ballistic flight, realized the gravitational environment similar to that of liquid-fueled rockets during its coasting flight. In the low-gravity state, the cryogenic test fluid, liquid nitrogen, was introduced into the test sections which had similar shapes to the flow channels in the cryogenic propulsion systems. The boiling of liquid nitrogen inside the test-sections and the transition of flow regimes from gas/liquid two-phase flow to liquid mono-phase flow were successfully visualized. The temperatures, pressures and void fractions in each channel were measured as well. The mechanisms enhancing heat transfer were discussed based on the visualization. In the present case, compared with the corresponding ground test, it was confirmed that the two-phase flow in the complex channel could wet the heat transfer surfaces more easily due to the absence of gravity, and that more uniform chill-down effect could been obtained.

本文言語English
ホスト出版物のタイトル51st AIAA/SAE/ASEE Joint Propulsion Conference
出版社American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(印刷版)9781624103216
DOI
出版ステータスPublished - 2015
イベント51st AIAA/SAE/ASEE Joint Propulsion Conference, 2015 - Orlando, United States
継続期間: 2015 7 272015 7 29

出版物シリーズ

名前51st AIAA/SAE/ASEE Joint Propulsion Conference

Other

Other51st AIAA/SAE/ASEE Joint Propulsion Conference, 2015
国/地域United States
CityOrlando
Period15/7/2715/7/29

ASJC Scopus subject areas

  • 工学(全般)

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