Fusion rules in Navier-Stokes turbulence: First experimental tests

被引：20

作者：

Fairhall, AL ^{[1
]}

Dhruva, B ^{[1
]}

Lvov, VS ^{[1
]}

Procaccia, I ^{[1
]}

Sreenivasan, KR ^{[1
]}

机构：

[1] YALE UNIV,MASON LAB,NEW HAVEN,CT 06520

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.79.3174

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first experimental tests of the recently derived fusion rules for Navier-Stokes turbulence. The fusion rules address the asymptotic properties of many-point correlation functions as some of the coordinates coalesce. and form an important ingredient of the nonperturbative statistical theory of turbulence. Here we test the fusion rules when the spatial separations lie within the inertial range, and find good agreement between experiment and theory. For inertial-range separations and for velocity increments which are not too large, a simple linear relation appears to exist for the Laplacian of the velocity fluctuation conditioned on velocity increments. [S0031-9007(97)04425-6].

引用

页码：3174 / 3177

页数：4

共 14 条

[1] HIGH-ORDER VELOCITY STRUCTURE FUNCTIONS IN TURBULENT SHEAR FLOWS [J].