DNS on a spatially developing grid turbulence

Hiroki Suzuki, Kouji Nagata, Yasuhiko Sakai, Toshiyuki Hayase

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

The purpose of this study is to investigate fundamental statistics of a spatially developing grid turbulence by means of direct numerical simulation based on the finite difference method. The Reynolds number based on the mesh size, M, is 2500, and streamwise computational domain size normalized by M is 112. The streamwise profiles of turbulent intensities show that the large-scale fluctuating velocity field is quasi-isotropic in the region x/M > 4, where x is the streamwise distance from the grid. The derivative skewness of streamwise fluctuating velocity u is smaller than those of vertical and spanwise fluctuating velocities in the far downstream region. On the other hand, the derivative flatness of u, v, and w are almost identical in the far downstream region.

本文言語English
論文番号032043
ジャーナルJournal of Physics: Conference Series
318
SECTION 3
DOI
出版ステータスPublished - 2011
イベント13th European Turbulence Conference, ETC13 - Warsaw, Poland
継続期間: 2011 9月 122011 9月 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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