ON THE UNIVERSAL FORM OF ENERGY-SPECTRA IN FULLY-DEVELOPED TURBULENCE

被引：78

作者：

SHE, ZS ^{[1
]}

JACKSON, E ^{[1
]}

机构：

[1] PRINCETON UNIV, PROGRAM APPL & COMPUTAT MATH, PRINCETON, NJ 08544 USA

来源：

PHYSICS OF FLUIDS A-FLUID DYNAMICS | 1993年 / 5卷 / 07期

关键词：

D O I：

10.1063/1.858591

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Several experimentally measured energy spectra of fully developed incompressible turbulent flows with Taylor microscale Reynolds numbers ranging from 130-13000 have been reexamined. It is shown that all spectra collapse to a universal curve after a simple rescaling of space and time. This rescaling does not involve any multifractal-type transformation, and the rescaled wave numbers scatter around the Kolmogorov dissipation wave numbers derived from experimentally measured quantities. An empirical formula for the resulting universal form is proposed, indicating a nontrivial form of the energy spectrum near the viscous dissipation cutoff.

引用

页码：1526 / 1528

页数：3

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