Flow instability and elastic vibration of shrouded corotating disk systems

R. Fukaya, S. Obi, S. Masuda, M. Tokuyama

研究成果: Article査読

15 被引用数 (Scopus)

抄録

The interaction between flow instability and elastic vibration of shrouded corotating disks is investigated. Simultaneous measurements of velocity fluctuation and disk vibration are performed in a 3.5-in hard disk drive, which was modified to ensure geometrical axisymmetry. The dependence on Reynolds number of velocity fluctuation and disk vibration is examined. Spectral analysis and cross-correlation measurements employing hotwire anemometry reveal the wave number, the speed of rotation, the coupling of instabilities on both sides of a disk as well as the axial extent of the unstable flow structure. The role of flow instability on disk vibration is emphasized.

本文言語English
ページ(範囲)369-373
ページ数5
ジャーナルExperiments in Fluids
33
3
DOI
出版ステータスPublished - 2002 9月

ASJC Scopus subject areas

  • 計算力学
  • 材料力学
  • 物理学および天文学(全般)
  • 流体および伝熱

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