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
Foundation for Promotion of Japanese Aerospace Technology
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資料
雑誌名(英)
JAXA Research and Development Memorandum
巻
JAXA-RM-06-003
発行年
2006-12-22
抄録（英）
In the present study, we focused on the length of the tip cavitation as a cavitation parameter for experimental investigations of the thermodynamic effect on a cavitating inducer. Comparison of the length of tip cavity in liquid nitrogen (76 K and 80 K) with that in cold water (296 K) allowed us to estimate the strength of the thermodynamic effect. In addition, unstable cavitation phenomena occur when the cavity length develops over the throat. Sub-synchronous rotating cavitation appears both in liquid nitrogen and in cold water. In contrast, cavitation surge appears only in cold water at a lower cavitation number. From these experimental results, thermodynamic effects on cavitation performance and instabilities were discussed.
熱力学的効果がインデューサの吸込み性能とキャビテーション不安定に与える影響
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