Small-scale statistics of turbulence at high Reynolds numbers by massive computation

被引：15

作者：

Gotoh, T ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Syst Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

COMPUTER PHYSICS COMMUNICATIONS | 2002年 / 147卷 / 1-2期

关键词：

turbulence; high Reynolds number; DNS; small-scale;

D O I：

10.1016/S0010-4655(02)00325-9

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Velocity field statistics in the inertial and dissipation ranges of three-dimensional, homogeneous, steady turbulent flow are studied using high-resolution direct numerical simulation (DNS) with up to N = 1024(3) grid points. The Taylor microscale Reynolds number is between 38 and 460. The Kolmogorov spectrum E(k) = Kepsilon(-2/3)k(-5/3) is observed clearly, and the value of the constant K is K = 1.64. The structure functions and their scaling exponents are measured and found to be anomalous. The statistics of the volume-averaged energy dissipation rate per unit mass are also examined. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：530 / 532

页数：3

共 9 条

[1] Analysis of turbulence by statistics based on generalized entropies [J].