Observation of the ultimate regime in Rayleigh-Benard convection

被引：241

作者：

Chavanne, X ^{[1
]}

Chilla, F ^{[1
]}

Castaing, B ^{[1
]}

Hebral, B ^{[1
]}

Chabaud, B ^{[1
]}

Chaussy, J ^{[1
]}

机构：

[1] ECOLE NORMALE SUPER LYON,PHYS LAB,F-69364 LYON 07,FRANCE

来源：

PHYSICAL REVIEW LETTERS | 1997年 / 79卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.79.3648

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In a low temperature He gas Rayleigh-Benard experiment, Rayleigh numbers from 10(3) to more than 10(14) are explored. Local velocity is estimated through the time lag between two closeby temperature probes. This allows characterizing of the high Rayleigh regime (Ra > 10(11)) as a fully turbulent one, possibly corresponding to the asymptotic regime predicted by R. Kraichnan [Phys. Fluids 5, 1374 (1962)]. [S0031-9007(97)04440-2].

引用

页码：3648 / 3651

页数：4

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