UNSPECIFIED. (2005) Vortex collapse and turbulence. FLUID DYNAMICS RESEARCH, 36 (4-6). pp. 249-260. ISSN 0169-5983

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Abstract

Recent calculations related to the self-induced collapse of large-scale vortex structures into fine scale, possibly singular, structures in the Euler and Navier-Stokes equations are described. The practical importance of these intense events is their possible role in turbulence through the effects of strong intermittency and how that will direct turbulence modelling. Despite a concerted international effort to simulate these events over a decade ago, their dynamical origin remains largely unknown. A new international collaboration designed to push our understanding of the Euler singularity problem is described. These events are closely related to one of the outstanding mathematical questions of our time: whether solutions of the three-dimensional incompressible Navier-Stokes equations, lying in a bounded domain with finite energy and no external forcing, remain regular for arbitrarily long times (www.claymath.org/Millennium_Prize_Problems). (c) 2005 Published by The Japan Society of Fluid Mechanics and Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Subjects:	T Technology > TJ Mechanical engineering and machinery Q Science > QC Physics
Journal or Publication Title:	FLUID DYNAMICS RESEARCH
Publisher:	ELSEVIER SCIENCE BV
ISSN:	0169-5983
Official Date:	April 2005
Volume:	36
Number:	4-6
Number of Pages:	12
Page Range:	pp. 249-260
Identification Number:	10.1016/j.fluiddyn.2004.09.003
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/6968

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