JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
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Other TitleA Study of Synchronization of Impeller Whirling Motion with Rotating Flow Instability (Impeller/Diffuser Rotating Stall and Rotating Cavitation) in Turbomachine
Author(jpn)吉田, 義樹
Author(eng)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エンジン研究開発グループ(JAXA)
Author Affiliation(eng)Engine System Research and Development Group, Space Transportation Propulsion Research and Development Center, Space Transportation Mission Directorate, Japan Aerospace Exploration Agency (JAXA)
Issue Date2013-10-31
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構研究開発資料
JAXA Research and Development Memorandum
Start page1
End page24
Publication date2013-10-31
AbstractRotordynamic fluid forces coupled with flow instabilities (i.e., impeller/diffuser rotating stall and rotating cavitation) in turbomachines were examined. Variations of fluid forces arisen from the flow instabilities have the similar characteristics, even if under the rotating stall or the rotating cavitation. The phase of the whirling fluid force vector changes by π around the natural frequency of flow instabilities. Kuramoto’s nonlinear model could explain well the synchronization of the whirling motion with the rotating flow instabilities.
Description形態: カラー図版あり
Physical characteristics: Original contains color illustrations
KeywordsRotordynamics; Fluid Forces; Synchronization; Nonlinear Science; Rotating Instability
Document TypeTechnical Report
JAXA Category研究開発資料
NASA Subject CategorySpacecraft Propulsion and Power
Report NoJAXA-RM-13-009

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