蒸发冷却模式以及微换热器,是最具有潜力的冷却高热流密度电子器件的方法之一。总结和研究微尺度蒸发冷凝相变机理,是本文研究目的。我们在参阅大量文献和提取大量精确数据的基础上,发现了新的区分常规通道与微通道的临界准则Bo×Re_1~(0.5)=200;在此基础上,我们归纳出了新的预测微通道压降、传热系数和临界热流量的关联式,与以前的关联式相比,新的关联式能更好地预测微通道数据。 Evaporative cooling mode, as well as micro-heat exchangers, is one of the most potential ways to cool high heat flux density electronic devices. To summarize and study the mechanism of microscale evaporative condensation phase transition is the purpose of this study. Based on a large amount of literature and a large amount of accurate data, we found a new critical criterion Bo * Re_1 ~ (0.5) = 200 that distinguishes between conventional channels and microchannels. Based on this, we conclude new predictive models Channel pressure drop, heat transfer coefficient and critical heat flux, the new correlation can better predict the microchannel data than the previous correlation.