2018
DOI: 10.1007/s10652-018-9596-6
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Turbulent secondary flows in wall turbulence: vortex forcing, scaling arguments, and similarity solution

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Cited by 9 publications
(18 citation statements)
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“…2015) that spanwise roughness heterogeneity can lead to the formation of Prandtl's secondary flows of the second kind (Bradshaw 1987), with recent evidence suggesting that the strength of these secondary flows is a strong function of the outer-scaled heterogeneity wavelength , reaching a maximum strength for (Anderson et al. 2018; Chung et al. 2018; Medjnoun et al.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…2015) that spanwise roughness heterogeneity can lead to the formation of Prandtl's secondary flows of the second kind (Bradshaw 1987), with recent evidence suggesting that the strength of these secondary flows is a strong function of the outer-scaled heterogeneity wavelength , reaching a maximum strength for (Anderson et al. 2018; Chung et al. 2018; Medjnoun et al.…”
Section: Resultsmentioning
confidence: 99%
“…These surfaces are of interest, since there is a precedent in the literature demonstrating that the wall-normal ‘extent of flow patterns’ imposed by the roughness arrangement can become large relative to where the in-plane roughness length scale approaches , limiting the observed outer-layer similarity (see for example Nugroho, Hutchins & Monty 2013; Anderson et al. 2018; Chan et al. 2018; Chung, Monty & Hutchins 2018; Medjnoun, Vanderwel & Ganapathisubramani 2018; Yang & Anderson 2018).…”
Section: Introductionmentioning
confidence: 99%
“…If we fix , the strength of the counter-rotating vortices is a function of only, where is the spanwise distance between two pairs of counter-rotating vortices, and is the half-channel height (Anderson et al. 2018; Yang & Anderson 2018). It follows that, given , then is a function of only.…”
Section: Drag Forces and Flow Physicsmentioning
confidence: 99%
“…Additionally, in order to identify the surface properties that characterise best the heterogeneity, many researchers performed parametric studies. It has been shown that the spanwise spacing between adjacent ridges/strips is a relevant surface parameter of the heterogeneity (Vanderwel & Ganapathisubramani 2015;Yang & Anderson 2017;Anderson et al 2018;Chung et al 2018;Chan et al 2018). However, other studies have shown that other surface features exhibited a potential to influence the secondary flows, such as the width of the "high" roughness region or the "amount" of roughness (Willingham et al 2014;Türk et al 2014;Stroh et al 2016), or the ridge shape and width (Goldstein & Tuan 1998;Wang & Cheng 2006;Hwang & Lee 2018).…”
Section: Introductionmentioning
confidence: 99%