A numerical and experimental investigation of heat transfer and fluid flow characteristics of a cross-connected alternating converging-diverging channel heat sink
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- 作者：Omer Bugra Kanargi bugrakanargi@u.nus.edu ; Poh Seng Lee ; mpelps@nus.edu.sg ; Christopher Yap mpecyap@nus.edu.sg
- 关键词：Air cooling ; Heat transfer ; Advection ; Pressure drop ; Fan power ; Secondary flow
- 刊名：International Journal of Heat and Mass Transfer
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：106
- 期：Complete
- 页码：449-464
- 全文大小：2770 K
- 卷排序：106
文摘
Repetitive thermal boundary layer disruption improves heat transfer performance. A better fluid mixing enables a more uniform temperature build-up of the coolant. The flow circulation regions could reduce the advection heat transfer efficiency. The vortices absorb the kinetic energy of the flow to sustain their angular momentum. Carefully tailored fin designs can provide reduced heat sink temperatures.