Japan Aerospace Exploration Agency Kakuda Space Center, Institute of Aerospace Technology
Japan Aerospace Exploration Agency
Japan Aerospace Exploration Agency Kakuda Space Center, Institute of Aerospace Technology
Japan Aerospace Exploration Agency Kakuda Space Center, Institute of Aerospace Technology
Japan Science and Technology Agency
Institute of Fluid Science, Tohoku University
出版者
宇宙航空研究開発機構
出版者（英）
Japan Aerospace Exploration Agency (JAXA)
雑誌名
宇宙航空研究開発機構研究開発報告
雑誌名(英)
JAXA Research and Development Report
巻
JAXA-RR-05-020
発行年
2006-03-31
抄録（英）
For experimental investigations of the thermodynamic effect on a cavitating inducer, it is necessary to observe the cavitation. However, visualizations of the cavitation are not so easy in cryogenic flow. For this reason, we estimated the cavity region in liquid nitrogen based on measurements of the pressure fluctuation near the blade tip. The degree of the thermodynamic effect was found to increase with the increase of the cavity length of the tip cavitation. The estimated temperature depression caused by vaporization increased rapidly when the cavity length extended over the throat. In addition, the estimated temperature inside the bubble nearly reached the temperature of the triple point when the pump performance deteriorated.
液体窒素中のインデューサに発生するキャビテーションの熱力学的効果
49479000.pdf
(2.33MB)
