Simplifying the complexity of pipe flow
Dwight BARKLEY
University of Warwick
When fluid flows through a pipe, channel, or duct, there are two basic forms of motion: smooth laminar motion and complex turbulent motion. The discontinuous transition between these states is a fundamental problem that has been studied for more than 125 years. I will recall some of the history of hydrodynamic stability theory with a view to explaining why even the simplest case, pipe flow, is both a fascinating and difficult problem. I will then discuss recent developments in theory and experiments that are finally resolving the transition to turbulence in pipe flow.
IMAGES
Excitations sonores d'un hexagone actif (plus de détails...)
CONFÉRENCES
Auto-organisation en physique et en biologie, morphogenèse, ondes-particules, turbulence, physique non linéaire, Colloque International en mémoire d’Yves Couder à l'ENS et UPCité, 4 Juin 2024
Bifurcations and Instabilities in Fluid Dynamics, Edinburgh, Scotland, 24 Juin 2024
19e Journées de l'Hydrodynamique, Ecole Centrale de Nantes, 26 Novembre 2024