Moderate time scale finite amplitude analysis of large stefan number convection in rotating mushy layers

被引：1

作者：

Govender, S ^{[1
]}

机构：

[1] Univ Natal, Sch Mech Engn, ZA-4041 Durban, South Africa

来源：

TRANSPORT IN POROUS MEDIA | 2003年 / 53卷 / 03期

关键词：

rotation; convection; coriolis force; mushy layer; finite amplitude;

D O I：

10.1023/A:1025042301809

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We investigate the steady state convection amplitude for solutal convection occurring during the solidification of a rotating mushy layer in a binary alloy system for a new Darcy equation formulation. We adopt a large far field temperature and assume that the initial composition is very close to the eutectic composition. The linear stability analysis showed that rotation stabilised solutal convection. The results of the weak non-linear analysis of stationary convection indicates the presence of Hopf bifurcation, associated with the oscillatory mode, developing at Ta = 3.

引用

页码：357 / 366

页数：10

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