DNS of passive scalar field with mean gradient in fractal-generated turbulence

Hiroki Suzuki, Kouji Nagata, Yasuhiko Sakai, Toshiyuki Hayase, Takashi Kubo

Research output: Contribution to conferencePaperpeer-review

3 Citations (Scopus)

Abstract

Turbulent flow field and passive scalar field in the spatially developing grid-generated turbulence are investigated by means of the direct numerical simulation (DNS). Two types of grids are numerically constructed using a immersed boundary method: the one is a classical biplane square grid and the other is a fractal grid which was firstly used in a wind tunnel by Hurst and Vassilicos (2007) and Seoud and Vassilicos (2007). Two types of passive scalar fields are calculated: the one is a difiusion of a passive scalar with a constant mean gradient and the other is a scalar mixing layer. To ensure the numerical accuracy, fully conservative high order accurate finite difierent schemes for full staggerd grid system are used. Fundermental flow and scalar fields are presented in this paper.

Original languageEnglish
Pages55-60
Number of pages6
Publication statusPublished - 2009
Event6th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2009 - Seoul, Korea, Republic of
Duration: 2009 Jun 222009 Jun 24

Other

Other6th International Symposium on Turbulence and Shear Flow Phenomena, TSFP 2009
CountryKorea, Republic of
CitySeoul
Period09/6/2209/6/24

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes

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