Direct numerical simulation of turbulent boundary layer downstream of turbulence - Generating grid

H. Suzuki, K. Nagata, Y. Sakai, Toshiyuki Hayase, T. Kubo

研究成果: Conference contribution

抄録

The effects of external grid turbulence in a free stream on the turbulent boundary layer are investigated by means of the direct numerical simulation (DNS). A square turbulencegenerating grid, on which the velocity components are set to zero, is located upstream of the flat boundary with a nonslip condition. The fractional step method is used to solve the governing equations. The results show that turbulence intensities and Reynolds stress normalized by the inner parameters are significantly suppressed in the log-law region by the external grid turbulence.

本文言語English
ホスト出版物のタイトル2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
ページ1407-1412
ページ数6
PART B
DOI
出版ステータスPublished - 2007 12 1
イベント2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 - San Diego, CA, United States
継続期間: 2007 7 302007 8 2

出版物シリーズ

名前2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
番号PART B
2 FORA

Other

Other2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
国/地域United States
CitySan Diego, CA
Period07/7/3007/8/2

ASJC Scopus subject areas

  • 機械工学
  • 凝縮系物理学

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