Dynamic characteristics of fluid force induced by swirling leakage flow between rotational and stationary disks

Takayuki Sugiyama*, Shigehiko Kaneko

*この研究の対応する著者

研究成果

1 被引用数 (Scopus)

抄録

Axial self-excited vibration may be induced in a balance piston by fluid with a tangential velocity component that flows into the piston orifices. To avoid such vibration, knowledge of the dynamic characteristics of axial self-excited vibration induced by swirling leakage flow is required at the design stage. In this research, the effect of axial rotation and swirl strength on the added fluid force coefficients is clarified by modeling the piston orifice as the combination of rotational and stationary disks, and deriving the unsteady fluid force generated by swirling leakage flow between the disks. As a result, reduction of the relative velocity in the circumferential direction is shown to destabilize the oscillatory system. In particular, the effect of swirl strength on the fluid force coefficient is found to be larger in the case of the divergent channel than in the case of the parallel flow path.

本文言語English
ホスト出版物のタイトルASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012
ページ65-74
ページ数10
PARTS A AND B
DOI
出版ステータスPublished - 2012 12 1
外部発表はい
イベントASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012 - Chicago, IL, United States
継続期間: 2012 8 122012 8 12

出版物シリーズ

名前Proceedings of the ASME Design Engineering Technical Conference
番号PARTS A AND B
1

Conference

ConferenceASME 2012 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference, IDETC/CIE 2012
国/地域United States
CityChicago, IL
Period12/8/1212/8/12

ASJC Scopus subject areas

  • モデリングとシミュレーション
  • 機械工学
  • コンピュータ サイエンスの応用
  • コンピュータ グラフィックスおよびコンピュータ支援設計

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