Experiments on turbulence in soap films

被引：27

作者：

Goldburg, WI

Rutgers, MA

Wu, XL

机构：

[1] Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh

[2] Department of Physics, Ohio State University, Columbus

来源：

PHYSICA A | 1997年 / 239卷 / 1-3期

关键词：

D O I：

10.1016/S0378-4371(97)00029-0

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Grid turbulence in a freely suspended soap film is investigated. The energy spectrum and the velocity difference on a given scale e are examined by fiber velocimetry and by homodyne photon-correlation spectroscopy. While the velocity field shows self-similarity over many different length scales. the energy spectrum. E(k), deviates strongly from the k(-5.3) law, which is predicted for the energy inverse cascade in two dimensions. Our experimental data can be satisfactorily fit to k(-3) over a range of wave numbers that are smaller than the wave number k(ini) at which the energy is injected into the system.

引用

页码：340 / 349

页数：10

共 15 条

[1] INVERSE ENERGY CASCADE IN STATIONARY 2-DIMENSIONAL HOMOGENEOUS TURBULENCE [J].