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titleキャビテ-ションの熱力学的効果がインデュ-サの翼負荷分布に与える影響
Other TitleInfluence of Thermodynamic Effect on Blade Load in a Cavitating Inducer
Author(jpn)菊田, 研吾; 四宮, 教行; 橋本, 知之; 島垣, 満; 南里, 秀明; 吉田, 義樹
Author(eng)Kikuta, Kengo; Shimiya, Noriyuki; Hashimoto, Tomoyuki; Shimagaki, Mitsuru; Nanri, Hideaki; 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; 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; 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
Author Affiliation(eng)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); 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)
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-10-003E
Publication date2010-05-31
Languagejpn
eng
AbstractDistribution of the blade load is one of the design parameters for a cavitating inducer. For experimental investigation of the thermodynamic effect on the blade load, we conducted experiments in both cold water and liquid nitrogen. The thermodynamic effect on cavitation notably appears in this cryogenic fluid, although it can be disregarded in cold water. In these experiments, the pressure rise along the blade tip was measured. In water, the pressure increase almost linearly from the leading edge to the trailing edge at higher cavitation number. After that, with a decrease of cavitation number, pressure rise occurred only near the trailing edge. On the other hand, in liquid nitrogen, the pressure distribution was similar to that in water at a higher cavitation number, even if the cavitation number as a cavitation parameter decreased. Because the cavitation growth is suppressed by the thermodynamic effect, the distribution of the blade load does not change even at lower cavitation number. By contrast, the pressure distribution in liquid nitrogen has the same tendency as that in water if the cavity length at the blade tip is taken as a cavitation indication. From these results, it was found that the shift of the blade load to the trailing edge depended on the increase of cavity length and that the distribution of blade load was indicated only by the cavity length independent of the thermodynamic effect.
DescriptionOriginal contains color illustrations
形態: カラー図版あり
Document TypeTechnical Report
JAXA Category研究開発資料
ISSN1349-1121
NCIDAA11983593
SHI-NOAA0064648000
Report NoJAXA-RM-10-003E
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/15995


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