Travelling-waves consistent with turbulence-driven secondary flow in a square duct
Fluid Dynamics
2010-11-03 v1
Abstract
We present numerically determined travelling-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.
Keywords
Cite
@article{arxiv.1011.0442,
title = {Travelling-waves consistent with turbulence-driven secondary flow in a square duct},
author = {Markus Uhlmann and Genta Kawahara and Alfredo Pinelli},
journal= {arXiv preprint arXiv:1011.0442},
year = {2010}
}