The Onset of Double-Diffusive Convection in a Vertical Cylinder Occupied by a Heterogeneous Porous Medium with Vertical Throughflow

被引：14
|
作者：
Kuznetsov, A. V. [1 ]
Nield, D. A. [2 ]
机构：
[1] N Carolina State Univ, Dept Mech & Aerosp Engn, Raleigh, NC 27695 USA
[2] Univ Auckland, Dept Engn Sci, Auckland, New Zealand
来源：
TRANSPORT IN POROUS MEDIA | 2012年 / 95卷 / 02期
关键词：
Porous medium; Throughflow; Thermal instability; Vertical cylinder; NATURAL-CONVECTION; CYLINDRICAL ENCLOSURE; CONSTANT FLUX; STABILITY;
D O I：
10.1007/s11242-012-0045-6
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
This paper investigates the onset of convection in a vertical cylinder occupied by a saturated porous medium of vertically heterogeneous permeability. The flow is induced by an applied vertical temperature gradient and an imposed solute concentration gradient. The main interest of this paper is studying the effect of vertical throughflow on the onset of instability in this system. The study is performed using linear stability theory. The problem is of considerable interest for hydrological and geophysical situations.
引用
收藏
页码：327 / 336
页数：10
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