Thermal plumes and convection in highly compressible fluids

被引：43

作者：

Chiwata, Y ^{[1
]}

Onuki, A ^{[1
]}

机构：

[1] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 14期

关键词：

D O I：

10.1103/PhysRevLett.87.144301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present simple hydrodynamic equations of supercritical fluids close to the gas-liquid critical point. We numerically solve them to examine plume generation and convection under gravity. These results are in good agreement with the experiment [A.B. Kogan and H. Meyer, Phys. Rev. E 63, 056310 (2001)]. This Letter is a first study of transient behavior of convection, which is unique in compressible fluids due to the piston effect.

引用

收藏

页码：144301/1 / 144301/4

页数：4

相关论文

共 27 条

[1] Direct numerical simulation of instabilities in a two-dimensional near-critical fluid layer heated from below [J].

Amiroudine, S ;

Bontoux, P ;

Larroudé, P ;

Gilly, B ;

Zappoli, B .

JOURNAL OF FLUID MECHANICS, 2001, 442 :119-140

[2]

[Anonymous], COMMUNICATION

[3] High Rayleigh number turbulent convection in a gas near the gas-liquid critical point [J].

Ashkenazi, S ;

Steinberg, V .

PHYSICAL REVIEW LETTERS, 1999, 83 (18) :3641-3644

[4]

ASHKENAZI S, 1997, THESIS WEIZMANN I SC

[5] Natural convection driven in CO2 near its critical point under terrestrial gravity conditions [J].

Azuma, H ;

Yoshihara, S ;

Onishi, M ;

Ishii, K ;

Masuda, S ;

Maekawa, T .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 1999, 42 (04) :771-774

[6] CRITICAL SPEEDING UP IN PURE FLUIDS [J].

BOUKARI, H ;

SHAUMEYER, JN ;

BRIGGS, ME ;

GAMMON, RW .

PHYSICAL REVIEW A, 1990, 41 (04) :2260-2263

[7]

BOUKARI H, 1990, PHYS REV LETT, V65, P654

[8] The onset of free convection near the liquid-vapour critical point -: Part I:: Stationary initial state [J].

Carlès, P ;

Ugurtas, B .

PHYSICA D, 1999, 126 (1-2) :69-82

[9]

Chandrasekhar S., 1981, HYDRODYNAMIC HYDROMA

[10] 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