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

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
Pages1407-1412
Number of pages6
EditionPART B
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 - San Diego, CA, United States
Duration: 2007 Jul 302007 Aug 2

Publication series

Name2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007
NumberPART B
Volume2 FORA

Other

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

ASJC Scopus subject areas

  • Mechanical Engineering
  • Condensed Matter Physics

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    Suzuki, H., Nagata, K., Sakai, Y., Hayase, T., & Kubo, T. (2007). Direct numerical simulation of turbulent boundary layer downstream of turbulence - Generating grid. In 2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007 (PART B ed., pp. 1407-1412). (2007 Proceedings of the 5th Joint ASME/JSME Fluids Engineering Summer Conference, FEDSM 2007; Vol. 2 FORA, No. PART B). https://doi.org/10.1115/FEDSM2007-37433