PASSIVE SCALAR CONVECTION IN A 2D LONG-RANGE DELTA-CORRELATED VELOCITY-FIELD - EXACT RESULTS

被引：5

作者：

CHERTKOV, M

FYODOROV, YV

KOLOKOLOV, I

机构：

[1] PETERSBURG NUCL PHYS INST,GATCHINA 188350,RUSSIA

[2] INFN,SEZ MILANO,I-20133 MILAN,ITALY

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1994年 / 27卷 / 14期

关键词：

D O I：

10.1088/0305-4470/27/14/020

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The paper presents a new field-theoretical approach to a 2D passive scalar advected by long-range random delta-correlated-in-time velocity field. The Gaussian form of the distribution for the stretching rate of a passive scalar cloud is derived and its parameters are found explicitly.

引用

页码：4925 / 4932

页数：8

共 14 条

[1] SMALL-SCALE VARIATION OF CONVECTED QUANTITIES LIKE TEMPERATURE IN TURBULENT FLUID .1. GENERAL DISCUSSION AND THE CASE OF SMALL CONDUCTIVITY [J].