Experimental investigation of blade rows interactions in contrarotating axial flow pump

Linlin Cao, Hironori Honda, Hiroaki Yoshimura, Satoshi Watanabe, Akinori Furukawa

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

6 被引用数 (Scopus)

抄録

As a high specific speed pump, the contra-rotating axial flow pump with two rotors rotating reversely has been proved with higher hydraulic and cavitation performance, while in our previous researches, our prototype rotors designed with equal rotational speeds for both the front and the rear rotors was also confirmed with the strong potential interaction between two blade rows. In the present study, the experimental investigations were focused on the rotor-rotor interactions in the contra-rotating rotors under two rotational speed combinations, an equal speed and a different speed ones with the lower speed of rear rotor; the latter is determined aiming at relieved rotor-rotor interaction. As the major experimental approach, casing wall static pressure measurements were conducted at pressure taps covering from upstream to downstream of the both rotors, and the pressure fluctuation modes were investigated by the FFT analyses. By series of pressure taps with different peripheral locations prepared at several axial locations, the pressure fluctuation modes with frequencies non-synchronous to the BPF (blade passing frequency) components were recognized, and confirmed to be related to the rotor-rotor interaction on the basis of theoretical analyses on the rotor-stator interaction in conventional rotorstator types.

本文言語英語
ホスト出版物のタイトルSymposia
ホスト出版物のサブタイトルFluid Machinery; Fluid-Structure Interaction and Flow-Induced Noise in Industrial Applications; Flow Applications in Aerospace; Flow Manipulation and Active Control: Theory, Experiments and Implementation; Multiscale Methods for Multiphase Flow; Noninvasive Measurements in Single and Multiphase Flows
出版社American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791846223
DOI
出版ステータス出版済み - 2014
イベントASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting, FEDSM 2014, Collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels - Chicago, 米国
継続期間: 8月 3 20148月 7 2014

出版物シリーズ

名前American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FEDSM
1B
ISSN(印刷版)0888-8116

その他

その他ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting, FEDSM 2014, Collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels
国/地域米国
CityChicago
Period8/3/148/7/14

!!!All Science Journal Classification (ASJC) codes

  • 機械工学

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