Coherent structures in near-wall turbulence

Sophie Herpin, Jean Marc Foucaut, Julio Soria, Michel Stanislas

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

Streamwise and spanwise vortices are investigated in a database of near-wall turbulence constituted of SPIV data of boundary layer covering a large range of Reynolds numbers (Reθ ∈ [1300; 18950]) and of a DNS dataset of channel flow at Reτ = 950. The detection algorithm is based on a fit of the velocity field surrounding extrema of swirling strength to an Oseen vortex. Some statistical results on the characteristics of the vortices (radius, vorticity, convection velocity, density) are investigated, giving some new insight into the organization of near-wall turbulence.

Original languageEnglish
Pages641-646
Number of pages6
Publication statusPublished - 1 Jan 2009
EventTurbulence and Shear Flow Phenomena 2009 - Seoul, Korea, Republic of (South)
Duration: 22 Jun 200924 Jun 2009
Conference number: 6th

Conference

ConferenceTurbulence and Shear Flow Phenomena 2009
Abbreviated titleTSFP 2009
CountryKorea, Republic of (South)
CitySeoul
Period22/06/0924/06/09

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