NUMERICAL SIMULATIONS OF SOFT AND HARD TURBULENCE - PRELIMINARY-RESULTS FOR 2-DIMENSIONAL CONVECTION

被引：78

作者：

DELUCA, EE ^{[1
]}

WERNE, J ^{[1
]}

ROSNER, R ^{[1
]}

CATTANEO, F ^{[1
]}

机构：

[1] UNIV COLORADO,JOINT INST LAB ASTROPHYS,BOULDER,CO 80309

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.64.2370

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report results on the transition from soft to hard turbulence in simulations of 2D Boussinesq convection. The computed probability densities for temperature fluctuations are exponential in form in both soft and hard turbulence, unlike what is observed in experiments; in contrast, we obtain a change in the Nusselt number scaling on Rayleigh number in good agreement with the 3D experiments. © 1990 The American Physical Society.

引用

页码：2370 / 2373

页数：4

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