微喷流高效散热器散热性能仿真分析

Simulated Analysis of Heat Dissipation Performance of Micro-jet High Efficiency Heat Exchanger

微流体散热技术是一种芯片级增强冷却技术,它利用微米尺度流体的增强散热效应对芯片进行直接冷却,大幅度提高了系统对芯片的冷却效率。然而,由于流体的层流黏滞效应,基于直通结构的微米尺度散热通道散热能力有限。采用有限元分析方法研究基于分布式喷嘴结构的微流体散热技术,改变流体的运动状态,并以喷射状的流体实现了高效均匀散热。

The microfluidic cooling technology is a chip cooling technology.It makes use of the micron scale fluid to enhance the cooling effect of the chip.However,the cooling efficiency of the system to the chip is greatly improved.However,due to the laminar viscous effect of the fluid,the heat dissipation capacity of the micro channel based on the straight-through structure is limited.A microfluidic heat dissipation technology based on distributed micro-jet structure is proposed and studied by using finite element analysis technology.The movement state of the fluid is changed,and the efficient and uniform heat dissipation is realized with the jet fluid.