Mixed Convection in an Annulus of Large Aspect Ratio

被引：17
|
作者：
Yao, L. S. [1 ]
Rogers, B. B. [1 ]
机构：
[1] Arizona State Univ, Dept Mech & Aerosp Engn, Tempe, AZ 85287 USA
来源：
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME | 1989年 / 111卷 / 1-4期
关键词：
Flow Instability; Mixed Convection;
D O I：
10.1115/1.3250737
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Mixed convection in an annulus of large aspect ratio is studied. At an aspect ratio of 100, the effect of wall curvature is minimal, and both the base flow and the stability characteristics approach those of a two-dimensional channel flow. The linear-stability results demonstrate that the fully developed flow is unstable in regions of practical interest in an appropriate parameter space. Consequently, commonly assumed steady parallel countercurrent flows in many idealized numerical and analytical studies are unlikely to be observed experimentally.
引用
收藏
页码：683 / 689
页数：7
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