The microtube heat sink with tangential impingement jet and variable fluid properties

被引：17
|
作者：
Lelea, Dorin [1 ]
机构：
[1] Univ Politehn Timisoara, Fac Mech Engn, Dept Thermal Machines & Transportat, Timisoara 300222, Romania
来源：
HEAT AND MASS TRANSFER | 2009年 / 45卷 / 09期
关键词：
VISCOUS DISSIPATION; PRESSURE-DROP; MICROCHANNEL; FLOW; WATER;
D O I：
10.1007/s00231-009-0495-8
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents the numerical investigation of the microtube heat sink with impingement jet feeding. The inlet channel covers only the quarter of the tube perimeter so the swirl flow is settled in the tubes and the heat transfer between the liquid flow and silicon substrate is improved. The water with the variable physical properties is used as the working fluid and laminar flow regime is considered. The proposed microtube heat sink with impingement jet feeding is compared with classic microtube heat sink in terms of temperature variation along the heated surface and temperature difference. The influence of the temperature dependent physical properties on the fluid flow and heat transfer is analyzed.
引用
收藏
页码：1215 / 1222
页数：8
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