Effect of structure on heat transfer performance in double-layered microchannel heat sinks

翟玉玲; 钟桂健; 李舟航

doi:10.13224/j.cnki.jasp.2018.03.007

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Effect of structure on heat transfer performance in double-layered microchannel heat sinks

更新时间：2026-07-07

- Effect of structure on heat transfer performance in double-layered microchannel heat sinks
- Vol. 33, Issue 3, Pages: 565-572(2018)
- 作者机构：
  
  昆明理工大学冶金与能源工程学院省部共建复杂有色金属资源清洁利用国家重点实验室,昆明,650093
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.2018.03.007
  CLC：
- Published：2018
- 稿件说明：
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翟玉玲, 钟桂健, 李舟航. 结构形式对双层微通道热沉传热性能的影响[J]. 航空动力学报, 2018, 33(3): 565-572.

doi: 10.13224/j.cnki.jasp.2018.03.007
翟玉玲, 钟桂健, 李舟航. 结构形式对双层微通道热沉传热性能的影响[J]. 航空动力学报, 2018, 33(3): 565-572. DOI： 10.13224/j.cnki.jasp.2018.03.007.

doi: 10.13224/j.cnki.jasp.2018.03.007 DOI：

摘要

设计一种双层微通道热沉，即热沉上下层通道结构相异B（上层为矩形微通道，下层为复杂结构微通道），旨在降低压降的同时保持良好的换热性能，并与上下层通道均为复杂结构微通道的热沉A作对比。用数值方法研究了顺流和逆流时、不同通道结构（PA、PB、CA、CB）对其传热性能的影响，并用场协同原理分析流场与温度场的协同关系对传热的影响。结果表明:当0

Abstract

A double-layered microchannel heat sink with difference structure in each layer (B) was designed

and compared with structure A (the same complex structure in each layer) to reduce pressure drop and main good heat transfer performance. The effects of parallel flow

counter flow and different structures (PA

CB) on heat transfer performance were studied numerically. Moreover

the effect of synergy relationship between flow field and temperature field on heat transfer was analyzed by field synergy principle. The results showed that the average bottom temperature of parallel flow PA and PB was lower than that of counter flow CA and CB when Reynolds number ranged from 0 to 140. However

the average bottom temperature from low to high followed by PB

PA and CA(when Reynolds number ranged from 140 to 250). From it

structure PB was adopted if there were high requirements for bottom temperature of microelectronics chips.From the view point of comprehensive heat transfer performance

the heat transfer performance and synergy angle of PB was better and smaller than others

indicating that it could improve the synergy relationship between flow field and temperature field obviously.

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Related Institution

北京工业大学环境与能源工程学院强化传热与过程节能教育部重点实验室

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State Key Laboratory of Structural Analysis for Industrial Equipment, School of Aeronautics and Astronautics, Dalian University of Technology

School of Aeronautics Science and Engineering, Beijing University of Aeronautics and Astronautics

College of Astronautics,Nanjing University of Aeronautics and Astronautics

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