Experimental measurements of the flow and heat transfer of a square jet impinging on an array of square pin fins

被引：33

作者：

Issa, JS ^{[1
]}

Ortega, A ^{[1
]}

机构：

[1] Univ Arizona, Dept Aerosp & Mech Engn, Expt & Computat Heat Transfer Lab, Tucson, AZ 85721 USA

来源：

JOURNAL OF ELECTRONIC PACKAGING | 2006年 / 128卷 / 01期

关键词：

pin fin heat sinks; impinging jet; electronics cooling;

D O I：

10.1115/1.2160513

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The flow behavior and heat transfer due to free air jet impingement on pin fin heat sinks was experimentally studied. Flow velocities and tip clearance ratios were varied front 2 to 20 m/s and 0 to 1, respectively. The stagnation pressure recovered at the center of the heat sink was higher for tall pins than for short pins. The pressure loss coefficient showed little dependence on Re, increased with increasing pin density and pin diameter, and decreased with increasing pin height and clearance ratio. The overall base-to-ambient thermal resistance decreased with increasing Re number, pin density, and pin diameter.

引用

页码：61 / 70

页数：10

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