Design and characterization of a heat sink cooled by an integrated synthetic jet matrix

被引:0
|
作者
Gerty, Donavon [1 ]
Mahalingam, Raghav [2 ]
Glezer, Ari [1 ]
机构
[1] Georgia Inst Technol, George W Woodruff Sch Mech Engn, Atlanta, GA 30332 USA
[2] Innovat Fluid, Austin, TX 78746 USA
来源
2006 PROCEEDINGS 10TH INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONICS SYSTEMS, VOLS 1 AND 2 | 2006年
关键词
PIV; cellular recirculation; laterally induced flow; basejets;
D O I
暂无
中图分类号
O414.1 [热力学];
学科分类号
摘要
A novel active heat sink design has been implemented using a matrix of integrated synthetic jets. In previous synthetic jet heat sink designs, cooling air is entrained upstream of the heat sink and is driven along the length of the fins resulting in a significant rise in the air temperature and corresponding drop in streamwise heat transfer effectiveness. In the new design, synthetic jets emanate from the base of the fins so that the induced jets and more importantly the entrained (cooling) ambient air flow along the fin height. The significantly shorter flow path ensures rapid purging and replacement of the heated air with cool entrained air. Furthermore, in the matrix design the jets are spread uniformly throughout the heat sink such that all fin surfaces are subjected to the same airflow. The velocity field of the active heat sink is mapped using particle image velocimetry (PIV) and the configuration that maximizes the volume flow rate through the fins is investigated. Thermal performance is characterized using a surrogate heater and embedded thermocouple sensors. The thermal performance of identical heat sinks cooled by the two synthetic jet approaches is compared.
引用
收藏
页码:356 / +
页数:2
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