研究微纳尺度的汽泡动力学行为是微纳流动与传热的基础前沿。基于作者提出的能描述相变之热质传递的lattice Boltzmann大密度比多相流复合模型,该文数值研究了单微通道中汽泡在人工空穴上核化跃离的物理过程,量化分析了汽泡核化、跃离和运动对微通道内液相流动和传热的影响,可为理论探索人工空穴强化微通道传热提供有意义的参考。 Studying the dynamics of microbubbles at the micro-nano scale is the basic frontier of micro-nano flow and heat transfer. Based on the lattice Boltzmann large-density multiphase composite model which can describe the heat and mass transfer of phase transitions proposed by the author, this paper numerically studies the physical process of nucleation and leaping of the bubble on artificial holes in a single microchannel. The quantitative analysis The influence of bubble nucleation, leaping and movement on the liquid phase flow and heat transfer in microchannels can provide a meaningful reference for theoretically exploring the heat transfer enhancement of artificial cavitation microchannels.