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首页> 外文会议>4th International Conference on Nanochannels, Microchannels and Minichannels 2006(ICNMM2006) pt.B >EXPERIMENTAL AND NUMERICAL STUDY ON FLOW HEAT TRANSFER IN MICROCHANNELS
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EXPERIMENTAL AND NUMERICAL STUDY ON FLOW HEAT TRANSFER IN MICROCHANNELS

机译：微通道内流动传热的实验与数值研究

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摘要

An investigation was conducted on liquid flow and heat transfer in partially heated microchannels etched on the surface of silicon substrates. The rectangular cross-section channels had a hydraulic diameter of 100 microns. A series of experiments were carried out at different liquid flow rates and heating power. A numerical approach was made for single-phase liquid flow in the microchannels. A laminar flow model was employed in the simulation. Solid-fluid coupled thermal energy model was proposed to solve the conjugate heat transfer in the fluid and solid domains. The comparison of simulations with the experiment results shows good agreement. High cooling capacity was found in present study compared with the available data, indicating strong entry-length effect.
机译：对在硅衬底表面上蚀刻的部分加热的微通道中的液体流动和传热进行了研究。矩形横截面通道的水力直径为100微米。在不同的液体流速和加热功率下进行了一系列实验。对微通道中的单相液体流动进行了数值模拟。在模拟中采用了层流模型。提出了固液耦合热能模型来解决流体和固体域的共轭传热问题。仿真与实验结果的比较表明吻合良好。与现有数据相比，本研究发现了较高的冷却能力，表明其入口长度效应很强。

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