Traveling-waves consistent with turbulence-driven secondary flow in a square duct

Uhlmann, M., Kawahara, G. & Pinelli, A. (2010). Traveling-waves consistent with turbulence-driven secondary flow in a square duct. Physics of Fluids, 22, 084102.. doi: 10.1063/1.3466661

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Abstract

We present numerically determined traveling-wave solutions for pressure-driven flow through a straight duct with a square cross section. This family of solutions represents typical coherent structures (a staggered array of counter-rotating streamwise vortices and an associated low-speed streak) on each wall. Their streamwise average flow in the cross-sectional plane corresponds to an eight-vortex pattern much alike the secondary flow found in the turbulent regime.

Item Type: Article
Additional Information: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Uhlmann, M., Kawahara, G. & Pinelli, A. (2010). Traveling-waves consistent with turbulence-driven secondary flow in a square duct. Physics of Fluids, 22, 084102 and may be found at http://dx.doi.org/10.1063/1.3466661.
Subjects: Q Science > QC Physics
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/15265

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