Turbulent structure and relaminalization of a rotating turbulent channel flow at high rotaton number

Shinichiro Sato, Shinnosuke Obi

研究成果: Conference contribution

抜粋

The present study reports on a series of direct numerical simulation of turbulent rotating channel flows at rotation numbers higher than those previously reported. The bulk Reynolds number (Re) was set approximately constant at 5800, while the non-dimensional rotation number Ro was increased up to 5.79. The flow visualization showed that the structure of the enlarged eddies on the pressure side, and the orientation of the structure was inclined towards downstream. The investigation of the budget of Reynolds stress transport equation indicated that the pressure transport of Reynolds stress and re-distribution term were extraordinary large at higher Ro. This led the conventional decomposition of velocity-pressure correlation terms to being not appropriate in this flow. It is suggested that the Reynolds stress modeling should better target the correlation between velocity and pressure gradient, or pressure diffusion and re-distribution terms must be handled with the same efforts, which indeed increases the task of modeling.

元の言語English
ホスト出版物のタイトル2007 Proceedings of the ASME/JSME Thermal Engineering Summer Heat Transfer Conference - HT 2007
ページ211-216
ページ数6
DOI
出版物ステータスPublished - 2007 12 1
イベント2007 ASME/JSME Thermal Engineering Summer Heat Transfer Conference, HT 2007 - Vancouver, BC, Canada
継続期間: 2007 7 82007 7 12

出版物シリーズ

名前2007 Proceedings of the ASME/JSME Thermal Engineering Summer Heat Transfer Conference - HT 2007
1

Other

Other2007 ASME/JSME Thermal Engineering Summer Heat Transfer Conference, HT 2007
Canada
Vancouver, BC
期間07/7/807/7/12

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Condensed Matter Physics

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  • これを引用

    Sato, S., & Obi, S. (2007). Turbulent structure and relaminalization of a rotating turbulent channel flow at high rotaton number. : 2007 Proceedings of the ASME/JSME Thermal Engineering Summer Heat Transfer Conference - HT 2007 (pp. 211-216). (2007 Proceedings of the ASME/JSME Thermal Engineering Summer Heat Transfer Conference - HT 2007; 巻数 1). https://doi.org/10.1115/HT2007-32593