Thermal modulation of Rayleigh-Benard convection

被引：0

作者：

Bhadauria, BS ^{[1
]}

机构：

[1] Jai Narain Vyas Univ, Dept Math & Stat, Jodhpur 342001, Rajasthan, India

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES | 2002年 / 57卷 / 9-10期

关键词：

modulation; stability; Rayleigh number; Galerkin method; thermal convection;

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Thermal convection in a fluid layer confined between two horizontal rigid boundaries has been studied with the help of the Floquet theory. The temperature distribution consists of a steady part and an oscillatory time-dependent part. Disturbances are assumed to be infinitesimal. Numerical results for the critical Rayleigh numbers and wave numbers are obtained. It is found that the disturbances are either synchronous with the primary temperature field or have half its frequency. Some comparisons have also been made.

引用

页码：780 / 786

页数：7

共 25 条

[1] Asymptotic study of the convective parametric instability in Hele-Shaw cell
Aniss, S
Souhar, M
Belhaq, M
[J]. PHYSICS OF FLUIDS, 2000, 12 (02) : 262 - 268
[2] [Anonymous], 1993, BENARD CELLS TAYLOR
[3] Time-periodic heating of Rayleigh-Benard convection
Bhadauria, BS
Bhatia, PK
[J]. PHYSICA SCRIPTA, 2002, 66 (01) : 59 - 65
[4] BHATAURIA BS, 2002, IN PRESS INT J MATH
[5] Effect of low-frequency modulation on thermal convection instability
Bhatia, PK
Bhadauria, BS
[J]. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 2001, 56 (6-7): : 509 - 522
[6] Effect of modulation on thermal convection instability
Bhatia, PK
Bhadauria, BS
[J]. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION A-A JOURNAL OF PHYSICAL SCIENCES, 2000, 55 (11-12): : 957 - 966
[7] Cesari L., 1963, Asymptotic Behavior and Stability Problems in Ordinary Differential Equations.
[8] CHANDRASEKHAR S, 1961, HYDRODYNAMIC HYDROGM
[9] 2-DIMENSIONAL OSCILLATORY CONVECTION IN A GRAVITATIONALLY MODULATED FLUID LAYER
CLEVER, R
SCHUBERT, G
BUSSE, FH
[J]. JOURNAL OF FLUID MECHANICS, 1993, 253 : 663 - 680
[10] EXPERIMENTS ON STABILITY OF VISCOUS FLOW BETWEEN ROTATING CYLINDERS .3. ENHANCEMENT OF STABILITY BY MODULATION
DONNELLY, RJ
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1964, 281 (1384) : 130 - +

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