High Rayleigh number turbulent convection in a gas near the gas-liquid critical point

被引：103

作者：

Ashkenazi, S ^{[1
]}

Steinberg, V ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Phys Complex Syst, IL-76100 Rehovot, Israel

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.83.3641

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

SF6 in the vicinity of its critical point was used to study turbulent convection up to exceptionally high Rayleigh numbers, Ra (up to 5 x 10(14)) and to verify for the first time the generalized scaling laws for the heat transport and the large scale circulation velocity as a function of Ra and the Prandtl number, Pr, in a very wide range of these parameters. Both scaling laws obtained are consistent with theoretical predictions by Shraiman and Siggia [Phys. Rev. A 42, 3650 (1900)].

引用

页码：3641 / 3644

页数：4

共 24 条

[1]

ABBACI A, 1990, BN1111 U MAR I PHYS

[2]

ASHKENAZI S, IN PRESS

[3]

ASHKENAZI S, 1997, THESIS WEIZMANN I SC

[4] RAYLEIGH-BENARD CONVECTION NEAR THE GAS-LIQUID CRITICAL-POINT [J].

ASSENHEIMER, M ;

STEINBERG, V .

PHYSICAL REVIEW LETTERS, 1993, 70 (25) :3888-3891

[5] SCALING OF HARD THERMAL TURBULENCE IN RAYLEIGH-BENARD CONVECTION [J].

CASTAING, B ;

GUNARATNE, G ;

HESLOT, F ;

KADANOFF, L ;

LIBCHABER, A ;

THOMAE, S ;

WU, XZ ;

ZALESKI, S ;

ZANETTI, G .

JOURNAL OF FLUID MECHANICS, 1989, 204 :1-30

[6]

CASTAING B, COMMUNICATION

[7] Observation of the ultimate regime in Rayleigh-Benard convection [J].

Chavanne, X ;

Chilla, F ;

Castaing, B ;

Hebral, B ;

Chabaud, B ;

Chaussy, J .

PHYSICAL REVIEW LETTERS, 1997, 79 (19) :3648-3651

[8] High Rayleigh number convection with gaseous helium at low temperature [J].

Chavanne, X ;

Chilla, F ;

Chabaud, B ;

Castaing, B ;

Chaussy, J ;

Hebral, B .

JOURNAL OF LOW TEMPERATURE PHYSICS, 1996, 104 (1-2) :109-129

[9] Strongly turbulent Rayleigh-Benard convection in mercury: Comparison with results at moderate Prandtl number [J].

Cioni, S ;

Ciliberto, S ;

Sommeria, J .

JOURNAL OF FLUID MECHANICS, 1997, 335 :111-140

[10]

GITTERMAN M, 1970, HIGH TEMP-USSR, V8, P754

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