Statistical properties of a turbulent boundary layer affected by grid-generated turbulence (analysis of spatial development by means of direct numerical simulation)

Hiroki Suzuki; Kouji Nagata; Yasuhiko Sakai; Toshiyuki Hayase

doi:10.1299/kikaib.77.737

Statistical properties of a turbulent boundary layer affected by grid-generated turbulence (analysis of spatial development by means of direct numerical simulation)

Hiroki Suzuki, Kouji Nagata, Yasuhiko Sakai, Toshiyuki Hayase

Research output: Contribution to journal › Article › peer-review

Abstract

The effects of grid-generated turbulence on a turbulent boundary layer are investigated by means of a direct numerical simulation (DNS). A square turbulence-generating grid, on which the velocity components are set to zero, is numerially constructed near the entrance to a rectangular parallelepiped domain. The nonslip condition is applied to the lower boundary to develop a turbulent boundary layer downstream of the turbulence-generating grid. The fractional step method is used to solve the governing equations. The results show that streamwise and vertical turbulence intensities and Reynolds stress normalized by the inner parameters are suppressed in the log-law region by the grid turbulence.

Original language	English
Pages (from-to)	737-748
Number of pages	12
Journal	Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
Volume	77
Issue number	775
DOIs	https://doi.org/10.1299/kikaib.77.737
Publication status	Published - 2011
Externally published	Yes

Keywords

Boundary layer
Direct numerical simulation
Fluid dynamics
Grid-generated turbulence
Numerical simulation
Turbulent flow

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering

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10.1299/kikaib.77.737

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Suzuki, H., Nagata, K., Sakai, Y., & Hayase, T. (2011). Statistical properties of a turbulent boundary layer affected by grid-generated turbulence (analysis of spatial development by means of direct numerical simulation). Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, 77(775), 737-748. https://doi.org/10.1299/kikaib.77.737

Statistical properties of a turbulent boundary layer affected by grid-generated turbulence (analysis of spatial development by means of direct numerical simulation). / Suzuki, Hiroki; Nagata, Kouji; Sakai, Yasuhiko et al.
In: Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, Vol. 77, No. 775, 2011, p. 737-748.

Research output: Contribution to journal › Article › peer-review

Suzuki, H, Nagata, K, Sakai, Y & Hayase, T 2011, 'Statistical properties of a turbulent boundary layer affected by grid-generated turbulence (analysis of spatial development by means of direct numerical simulation)', Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B, vol. 77, no. 775, pp. 737-748. https://doi.org/10.1299/kikaib.77.737

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Statistical properties of a turbulent boundary layer affected by grid-generated turbulence (analysis of spatial development by means of direct numerical simulation)

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Keywords

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