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title回転数が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に与える影響
Other TitleInfluence of Rotational Speed on Thermodynamic Effect in Cavitating Inducer
Author(jpn)菊田, 研吾; 橋本, 知之; 島垣, 満; 南里, 秀明; 水野, 勉; 吉田, 義樹
Author(eng)Kikuta, Kengo; Hashimoto, Tomoyuki; Shimagaki, Mitsuru; Nanri, Hideaki; Mizuno, Tsutomu; Yoshida, Yoshiki
Author Affiliation(jpn)宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター; 宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター; 宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター; 宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター; IHI; 宇宙航空研究開発機構宇宙輸送ミッション本部宇宙輸送系推進技術研究開発センター
Author Affiliation(eng)Space Transportation Propulsion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA); Space Transportation Propulsion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA); Space Transportation Propulsion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA); Space Transportation Propulsion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA); IHI; Space Transportation Propulsion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA)
Issue Date2010-05-31
PublisherJapan Aerospace Exploration Agency (JAXA)
宇宙航空研究開発機構
Publication titleJAXA research and development memorandum
宇宙航空研究開発機構研究開発資料
VolumeJAXA-RM-10-002
Publication date2010-05-31
Languagejpn
eng
AbstractTo estimate the influence of velocity on thermodynamic effect, we conducted the experiments, in which inducer rotational speed was changed in liquid nitrogen. The experiments in liquid nitrogen and in cold water allowed us to estimate the amplitude of the thermodynamic effect. In the experiment with lower rotational speed, suction performance was improved. The cavity length at lower rotational speed was shorter than that at higher one at the same cavitation number. Thus, we have confirmed that the degree of thermodynamic effect depends on the rotational speed as the suppression of cavity length. The temperature depression of liquid nitrogen was estimated from the comparison of the cavity length. We found that the amplitude of temperature depression became smaller when the rotation speed was lower. In addition, from the arrange data using the modified non-dimensional thermodynamic parameter SIGMA(sup *)(sub mod), the effect of nonlinearity of the vapor pressure/temperature curve should be considered to evaluate the thermodynamic effect especially in the case of higher temperature.
DescriptionOriginal contains color illustrations
形態: カラー図版あり
KeywordsCavitation, Inducer, Thermodynamic Effect, Rotational Speed, Temperature Depression
Document TypeTechnical Report
JAXA Category研究開発資料
ISSN1349-1121
NCIDAA11983593
SHI-NOAA0064647000
Report NoJAXA-RM-10-002
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/21194


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