Embedded-LES and experiment of turbulent boundary layer flow around a floor-mounted cube

Nina Gall Jørgensen, Holger Koss, Jens Chr. Bennetsen

Research output: Contribution to conferencePaperResearch

Abstract

An Embedded LES approach is used to numerically simulate fluctuating surface pressures on a floor-mounted cube in a turbulent boundary layer flow and compared to wind tunnel experiments. The computation were performed with the CFD software ANSYS FLUENT at a Reynolds number at cube height of Reh = 1.3x105. The computational mesh exists of 0.77 and 4.7 million hexahedra cells in the RANS and LES domains, respectively. The computed mean values are found to be accurate while the frequency spectrum of the upstream flow is not well captured due to failure of the upstream RANS-LES interface to produce correct velocity scales. However, the body induced turbulence is well captured in the fluctuating pressure coefficients.
Original languageEnglish
Publication date2012
Number of pages10
Publication statusPublished - 2012
EventThe Seventh International Colloquium on Bluff Body Aerodynamics and Applications - Jin Jiang Tower, Shanghai, China
Duration: 2 Sep 20126 Sep 2012
Conference number: 7
http://bbaa7.org/index.aspx

Conference

ConferenceThe Seventh International Colloquium on Bluff Body Aerodynamics and Applications
Number7
LocationJin Jiang Tower
Country/TerritoryChina
CityShanghai
Period02/09/201206/09/2012
Internet address

Keywords

  • Embedded LES
  • Turbulent boundary layer flow
  • Floor-mounted cube

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