ENGLISH

Turbulence in Fluids: Stochastic and Numerical Modelling

By Marcel Lesieur (auth.)

Book information

Publisher
Springer Netherlands
Year
1990
ISBN
978-94-010-6726-3, 978-94-009-0533-7
DOI
10.1007/978-94-009-0533-7
Language
english
Format
PDF
Filesize
17 MB (17680353 bytes)
Series
Fluid Mechanics and Its Applications 1
Edition
2
Pages
412\434
Orientation
yes
Scanned
yes
Time added
2013-08-01 04:00:00
Engineering Fluid Dynamics;Mechanics;Automotive En

Description

Turbulence is a dangerous topic which is often at the origin of serious fights in the scientific meetings devoted to it since it represents extremely different points of view, all of which have in common their complexity, as well as an inability to solve the problem. It is even difficult to agree on what exactly is the problem to be solved. Extremely schematically, two opposing points of view have been advocated during these last ten years: the first one is "statistical", and tries to model the evolution of averaged quantities of the flow. This com­ has followed the glorious trail of Taylor and Kolmogorov, munity, which believes in the phenomenology of cascades, and strongly disputes the possibility of any coherence or order associated to turbulence. On the other bank of the river stands the "coherence among chaos" community, which considers turbulence from a purely deterministic po­ int of view, by studying either the behaviour of dynamical systems, or the stability of flows in various situations. To this community are also associated the experimentalists who seek to identify coherent structures in shear flows.

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