Eulerian diagnostics for Lagrangian chaos in three-dimensional Navier-Stokes flows

被引：20
|
作者：
Yannacopoulos, AN [1 ]
Mezic, I
Rowlands, G
King, GP
机构：
[1] Univ Warwick, Dept Phys, Coventry CV4 7AL, W Midlands, England
[2] Univ Calif Santa Barbara, Dept Mech & Environm Engn, Santa Barbara, CA 93106 USA
[3] Univ Warwick, Dept Engn, Fluid Dynam Res Ctr, Coventry CV4 7AL, W Midlands, England
来源：
PHYSICAL REVIEW E | 1998年 / 57卷 / 01期
关键词：
D O I：
10.1103/PhysRevE.57.482
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
Based on symmetry considerations, Eulerian quantities are defined which can serve as diagnostics for the regions of the flow where Lagrangian chaos is possible in a three-dimensional Navier-Stokes flew. The applicability of the diagnostics is tested in two model flows which are perturbative solutions of the three-dimensional Navier-Stokes equation: the eccentric Taylor vortex and the (concentric) wavy Taylor vortex.
引用
收藏
页码：482 / 490
页数：9
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