Fluxes and energy dissipation in thermal convection and shear flows

被引：36

作者：

Eckhardt, B. ^{[1
]}

Grossmann, S.

Lohse, D.

机构：

[1] Univ Marburg, Fachbereich Phys, D-35032 Marburg, Germany

[2] Univ Twente, Dept Appl Phys, JM Burgers Ctr, NL-7500 AE Enschede, Netherlands

[3] Univ Twente, Impact Inst, NL-7500 AE Enschede, Netherlands

来源：

EPL | 2007年 / 78卷 / 02期

关键词：

D O I：

10.1209/0295-5075/78/24001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We expose analogies between turbulence in a fluid heated from below (Rayleigh-Benard (RB) flow) and shear flows: The unifying theory for RB flwow (see GROSSMANN S. and LOHSE D., J. Fluid Mech., 407 (2000) 27 and subsequent refinements) can be extended to the flow between rotating cylinders (Taylor-Couette flow) and pipe (Poiseuille) flow. We identify "wind" dissipation rates and momentum fluxes that are analogous to the dissipation rate and heat flux in RB flow. The proposed unifying description for the three cases is consistent with the experimental data. Copyright (C) EPLA, 2007.

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页数：6

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