On the role of correlation between instantaneous velocity and pressure-gradient in large-scale turbulence

研究成果: Conference contribution

抄録

Turbulent transport of Reynolds stress by triple moment of fluctuating velocity and pressure-velocity correlation are evaluated from a DNS for wake of a rectangular cylinder located in a uniform flow. The turbulent diffusion transport of turbulent kinetic energy hardly correlates with its gradient vector, indicating that the generally accepted gradient diffusion model is inadequate. It is inferred that the separate modeling of the individual Reynolds stress component provides a better possibility for modeling the turbulent transport in this flow, because of the strong departure from the equilibrium state of turbulence. The possibility of the direct modeling of the pressure gradient-velocity correlation is discussed.

本文言語English
ホスト出版物のタイトルProceedings of the 4th ASME/JSME Joint Fluids Engineering Conference
ホスト出版物のサブタイトルVolume 1, Part C, Forums
編集者A. Ogut, Y. Tsuji, M. Kawahashi
出版社American Society of Mechanical Engineers
ページ2059-2064
ページ数6
ISBN(印刷版)0791836967, 9780791836965
DOI
出版ステータスPublished - 2003 1 1
イベント4th ASME/JSME Joint Fluids Engineering Conference - Honolulu, HI, United States
継続期間: 2003 7 62003 7 10

出版物シリーズ

名前Proceedings of the ASME/JSME Joint Fluids Engineering Conference
1 C

Other

Other4th ASME/JSME Joint Fluids Engineering Conference
国/地域United States
CityHonolulu, HI
Period03/7/603/7/10

ASJC Scopus subject areas

  • 機械工学
  • 流体および伝熱

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