Vortex organization in the outer layer of a turbulent boundary layer overlying sparse, hemispherical roughness elements is explored with two-component particle-image velocimetry (PIV) in multiple streamwise-wall-normal measurement planes downstream and between elements. The presence of sparse roughness elements causes a shortening of the streamwise length scale in the near-wall region.
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- Guala, Michael (Author)
- Tomkins, Christopher D. (Author)
- Christensen, Kenneth T. (Author)
- Adrian, Ronald (Author)
- Ira A. Fulton Schools of Engineering (Contributor)
- 2012-09-09
- Digital object identifier: 10.1080/00221686.2012.729229
- Identifier TypeInternational standard serial numberIdentifier Value0022-1686
- Identifier TypeInternational standard serial numberIdentifier Value1814-2079
- This is an Author's Accepted Manuscript of an article published as Michele Guala , Christopher D. Tomkins , Kenneth T. Christensen , Ronald J. Adrian. (2012) Vortex organization in a turbulent boundary layer overlying sparse roughness elements, Journal of Hydraulic Research, 50(5), 465-481 http://dx.doi.org/10.1080/00221686.2012.729229, opens in a new window Copyright Taylor & Francis, available online at: http://www.tandfonline.com/doi/abs/10.1080/00221686.2012.729229, opens in a new window
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Michele Guala , Christopher D. Tomkins , Kenneth T. Christensen , Ronald J. Adrian. (2012) Vortex organization in a turbulent boundary layer overlying sparse roughness elements, Journal of Hydraulic Research, 50(5), 465-481 http://dx.doi.org/10.1080/00221686.2012.729229