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为明晰电场对汽—液两相系统的效应,本文针对均匀电场作用下的汽液两相流中附着于壁面的单个汽泡,建立了数学模型,考虑了汽泡的存在对电场分布的影响。通过求解电场控制方程,得到了均匀电场作用下汽泡周围及其内部的电势及电场分布的数值解。这为进一步研究 EHD 作用下的两相系统中汽泡的行为,揭示 EHD强化沸腾换热机理奠定了基础。
In order to clarify the effect of the electric field on the vapor-liquid two-phase system, a mathematical model is established for the single bubble attached to the wall in a vapor-liquid two-phase flow under a uniform electric field. The influence of the bubble on the electric field distribution is considered . By solving the governing equations of the electric field, the numerical solution of the electric potential and the electric field around and inside the bubble is obtained under uniform electric field. This laid the foundation for the further study of bubble behavior in the two-phase system under EHD and revealed the mechanism of EHD enhancement boiling heat transfer.