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

[11]

GITTERMAN M, 1971, PMM-J APPL MATH MEC, V34, P305

[12]

GROSSMANN S, 1999, U MARBURG REPORT

[13] TRANSITIONS TO TURBULENCE IN HELIUM GAS [J].

HESLOT, F ;

CASTAING, B ;

LIBCHABER, A .

PHYSICAL REVIEW A, 1987, 36 (12) :5870-5873

[14] Rayleigh-Benard convection onset in a compressible fluid:: 3He near TC [J].

Kogan, AB ;

Murphy, D ;

Meyer, H .

PHYSICAL REVIEW LETTERS, 1999, 82 (23) :4635-4638

[15]

Landau L., 1986, FLUID MECH-SOV RES

[16] Heat transport scaling in turbulent Rayleigh-Benard convection: Effects of rotation and prandtl number [J].

Liu, YM ;

Ecke, RE .

PHYSICAL REVIEW LETTERS, 1997, 79 (12) :2257-2260

[17] GRAVITY EFFECTS IN FLUIDS NEAR THE GAS-LIQUID CRITICAL-POINT [J].

MOLDOVER, MR ;

SENGERS, JV ;

GAMMON, RW ;

HOCKEN, RJ .

REVIEWS OF MODERN PHYSICS, 1979, 51 (01) :79-99

[18] TURBULENT SUPPRESSION OF SPINODAL DECOMPOSITION [J].

PINE, DJ ;

EASWAR, N ;

MAHER, JV ;

GOLDBURG, WI .

PHYSICAL REVIEW A, 1984, 29 (01) :308-313

[19] TURBULENCE IN BINARY FLUID MIXTURES [J].

RUIZ, R ;

NELSON, DR .

PHYSICAL REVIEW A, 1981, 23 (06) :3224-3245

[20] HEAT-TRANSPORT IN HIGH-RAYLEIGH-NUMBER CONVECTION [J].

SHRAIMAN, BI ;

SIGGIA, ED .

PHYSICAL REVIEW A, 1990, 42 (06) :3650-3653

← 1 2 3 →