Skip to Main content Skip to Navigation
Conference papers

On the decay of turbulence in plane Couette flow

Abstract : The decay of turbulent and laminar oblique bands in the lower transitional range of plane Couette flow is studied by means of direct numerical simulations of the Navier-Stokes equations. We consider systems that are extended enough for several bands to exist, thanks to mild wall-normal under-resolution considered as a consistent and well-validated modelling strategy. We point out a two-stage process involving the rupture of a band followed by a slow regression of the fragments left. Previous approaches to turbulence decay in wall-bounded flows making use of the chaotic transient paradigm are reinterpreted within a spatiotemporal perspective in terms of large deviations of an underlying stochastic process.
Complete list of metadata

Cited literature [11 references]  Display  Hide  Download
Contributor : Denis Roura Connect in order to contact the contributor
Submitted on : Tuesday, July 22, 2014 - 1:58:01 PM
Last modification on : Thursday, March 5, 2020 - 6:29:32 PM
Long-term archiving on: : Monday, November 24, 2014 - 8:26:18 PM


Publisher files allowed on an open archive




Paul Manneville. On the decay of turbulence in plane Couette flow. 13th European Turbulence Conference (ETC13), Sep 2011, Warsaw, Poland. pp.032014, ⟨10.1088/1742-6596/318/3/032014⟩. ⟨hal-01025976⟩



Record views


Files downloads