Population trends of spanwise vortices in wall turbulence

By Yanhua Wu, Kenneth T. Christensen. Journal of Fluid Mechanics, 2006

274 citations recorded by the source corpus.

Subfields: Computational Mechanics, Ocean Engineering

View Paper: https://www.semanticscholar.org/paper/9b5c1d196f6834e63fd3cce695b20fbbde5cf4e0

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In Computational Mechanics

In Ocean Engineering

Citations in the corpus

Turbulence Structure in Rough and Smooth Wall Boundary Layers (2006, background): “Wu & Christensen (2006) reported the same observation for smooth walls.”
On coherent structure in wall turbulence (2013, background): “…and retrograde hairpins (vortices with azimuthal rotation in and counter to the sense of the mean shear), respectively, have been identified in the literature (e.g. Wu & Christensen 2006), and similar phenomena have been reported by, for example, Falco (1977, 1991) and Carlier & Stanislas (2005).”
Vortical structures in the turbulent boundary layer: a possible route to a universal representation (2008, methodology): “They also agree with the trends exhibited by the vortex population densities computed by Wu & Christensen (2006) from measurements obtained both in a turbulent boundary layer and a channel flow at different Reynolds numbers.”
Spatial structure of a turbulent boundary layer with irregular surface roughness (2010, methodology): “Although less numerous, several retrograde spanwise vortices exist and Wu & Christensen (2006) reported these structures to occur most frequently near the outer edge of the log layer where they often occur in close proximity to prograde vortices.”
Towards Reconciling the Large-Scale Structure of Turbulent Boundary Layers in the Atmosphere and Laboratory (2012, result): “…other studies have investigated hairpin vortices and packets, both in laboratory (Ganapathisubramani et al. 2003, 2005; Hambleton et al. 2006; Wu and Christensen 2006; Dennis and Nickels 2011a and others) and numerical investigations (Zhou et al. 1999; Wu and Moin 2009; Lee and Sung 2011 and…”
Very-large-scale motions in a turbulent boundary layer (2010, methodology): “Hairpin vortex signatures Galilean decomposition has been used to investigate the flow fields associated with packets by several researchers (AMT; Tomkins & Adrian 2003; Wu & Christensen 2006).”
Cascades in Wall-Bounded Turbulence (2012, background): “Wu & Christensen (2005) found that to be the case over the full logarithmic region below y/δ ≈ 0.25, but Carlier & Stanislas (2005) found both signs to be comparable above y+ ≈ 150 (y/δ ≈ 0.06), and Herpin (2010), over a wider range of Reynolds numbers, found that their ratio stabilizes above y+ ≈…”
Turbulence structure in a boundary layer with two-dimensional roughness (2009, methodology): “The term prograde, as used by Wu & Christensen (2006), refers to vortices rotating in the direction exhibited by the hairpin heads, as induced by the mean shear.”