RELATIVE SPATIAL DIFFUSION IN TURBULENT MEDIA

被引：5

作者：

SEKI, K

KITAHARA, K

NICOLIS, G

机构：

[1] TOKYO INST TECHNOL,FAC SCI & ENGN,DEPT ENERGY SCI,MEGURO KU,TOKYO 152,JAPAN

[2] TOKYO INST TECHNOL,FAC SCI,DEPT APPL PHYS,MEGURO KU,TOKYO 152,JAPAN

[3] FREE UNIV BRUSSELS,FAC SCI,B-1050 BRUSSELS,BELGIUM

[4] FREE UNIV BRUSSELS,CTR NONLINEAR PHENOMENA & COMPLEX SYST,B-1050 BRUSSELS,BELGIUM

来源：

PHYSICA A | 1994年 / 209卷 / 3-4期

关键词：

D O I：

10.1016/0378-4371(94)90190-2

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Starting from the Langevin equation a nonlinear evolution equation describing the mean square distance of initially close tagged particles in a turbulent medium is obtained. The equation is the same as that derived for a turbulent plasma by Misguich and Balescu using renormalized kinetic theory. The approach is extended to incorporate stable drift in connection with the diffusion of macro particles in a turbulent fluid. The initial similar to t(3) and intermediate exponential growth of the mean square distance subsist even under the presence of stable drift in agreement with many confirmed observations.

引用

页码：369 / 384

页数：16

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