Energy spectrum in the dissipation range of fluid turbulence

被引：65

作者：

Martinez, DO

Chen, S

Doolen, GD

Kraichnan, RH

Wang, LP

Zhou, Y

机构：

[1] LOS ALAMOS NATL LAB, CTR NONLINEAR STUDIES, LOS ALAMOS, NM 87545 USA

[2] IBM CORP, THOMAS J WATSON RES CTR, DIV RES, YORKTOWN HTS, NY 10598 USA

[3] UNIV DELAWARE, DEPT MECH ENGN, NEWARK, DE 19716 USA

[4] NASA, LANGLEY RES CTR, ICASE, HAMPTON, VA 23861 USA

来源：

JOURNAL OF PLASMA PHYSICS | 1997年 / 57卷

关键词：

D O I：

10.1017/S0022377896005338

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

High-resolution, direct numerical simulations of three-dimensional incompressible Navier-Stokes equations are carried out to study the energy spectrum in the dissipation range. An energy spectrum of the form A (k/k(d))(alpha)exp[-beta k/k(d)] is confirmed. The possible values of the parameters alpha and beta, as well as their dependence on Reynolds numbers and length scales, are investigated, showing good agreement with recent theoretical predictions. A 'bottleneck'-type effect. is reported at k/k(d) approximate to 4, exhibiting a possible transition from near-dissipation to far-dissipation.

引用

页码：195 / 201

页数：7

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