Stereoscopic PIV measurement in laminar rotating plane Couette flow

Takuya Kawata, P. Henrik Alfredsson

研究成果: Paper査読

抄録

Plane Couette flow with spanwise system rotation shows structures of streamwise-oriented roll cells that arise due to the instability by the Coriolis force when the system rotation is in the opposite direction to the mean flow vorticity. The momentum transport caused by such roll cell structures makes the flow tend to exhibit zero absolute vorticity. In the present study, stereoscopic PIV measurements in the rotating plane Couette flow were carried out in order to further illuminate the vortex structures and transport phenomena in this flow. The Reynolds stresses and some terms of its transport equation were evaluated to discuss the transport phenomena caused by the coherent structure. Furthermore, the wall shear stress was evaluated based on the measurement results of the Reynolds and viscous shear stresses and its variation with the system rotation rate is also presented.

本文言語English
出版ステータスPublished - 2015
外部発表はい
イベント15th European Turbulence Conference, ETC 2015 - Delf, Netherlands
継続期間: 2015 8 252015 8 28

Conference

Conference15th European Turbulence Conference, ETC 2015
国/地域Netherlands
CityDelf
Period15/8/2515/8/28

ASJC Scopus subject areas

  • 大気科学
  • 地球物理学
  • 天文学と天体物理学
  • 音響学および超音波学

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