HEAT-TRANSFER ENHANCEMENT IN A CHANNEL WITH A BUILT-IN SQUARE CYLINDER

被引：28
|
作者：
VALENCIA, A
机构：
[1] Universidad de Chile Departamento de Ingeniería Mecánica Casilla 2777, Santiago
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 1995年 / 22卷 / 01期
关键词：
D O I：
10.1016/0735-1933(94)00051-L
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A two dimensional numerical investigation of the unsteady laminar flow pattern and forced convective heat transfer in a channel with a built-in square cylinder is presented. The channel in the entrance region has a length to plate spacing of ten. The computations were made for several Reynolds number and two square cylinder sizes. Hydrodynamic behavior and heat transfer results are obtained by solution of the complete Navier-Stokes and energy equation. The results show that these flow exhibits laminar self-sustained oscillations for Reynolds numbers above the critical one. This study shows that oscillatory separated flows result in a significant heat transfer enhancement but also in a significant pressure drop increase.
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页码：47 / 58
页数：12
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