ON ONE PROPERTY OF LAMB VECTOR IN ISOTROPIC TURBULENT-FLOW

被引：28
|
作者：
TSINOBER, A
机构：
[1] Department of Applied Mathematics and Theoretical Physics, Cambridge CB3 9EW, Silver Street
[2] Faculty of Engineering, Tel-Aviv University
来源：
PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1990年 / 2卷 / 04期
关键词：
D O I：
10.1063/1.857747
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
It is shown that the potential part of Lamb vector λ = ωXu, ω = ∇Xu, where u is an isotropic Gaussian solenoidal random field, is much larger than its solenoidal part. This result shows that purely kinematic properties of turbulent flow can lead to essential reduction of its nonlinearity and thereby to impose considerable constraints on flow dynamics and topology. © 1990 American Institute of Physics.
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页码：484 / 486
页数：3
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