共 11 条
[11]
TARASUK JD, 1968, CS U SASK MECH ENG D
HEAT-TRANSFER ENHANCEMENT FROM A VERTICAL, ISOTHERMAL CHANNEL GENERATED BY THE CHIMNEY EFFECT
被引：54
作者：
STRAATMAN, AG
TARASUK, JD
FLORYAN, JM
机构：
[1] The University of Western Ontario, London, ON
来源：
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
|
1993年
/
115卷
/
02期
关键词：
AUGMENTATION AND ENHANCEMENT;
NATURAL CONVECTION;
D O I：
10.1115/1.2910691
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A numerical and experimental investigation of free convection from vertical, isothermal, parallel-walled channels has been undertaken to explore the heat transfer enhancement obtained by adding adiabatic extensions of various sizes and shapes. Investigations were carried out for air (Pr = 0.7) over a wide range of wall heating conditions. In all cases, the adiabatic extensions were able to increase heat transfer. The increase varied from 2.5 at low Ra* to 1.5 at high Ra*. The experimental and numerical results are in excellent agreement. A single correlation accounting for the channel aspect ratio L(h)/b, expansion ratio, B/b, modified Rayleigh number, Ra* and heated length ratio, L(h)/L is presented.
引用
收藏
页码：395 / 402
页数：8
相关论文