In this study, single-bubble electro-hydrodynamic effects on the two-phase laminar flow of water under electric field stress are investigated using numerical modeling. A 2D axisymmetric model is also developed to study the growth and departure of a single bubble. The phase-field method is applied to track the interphase between liquid and gas. The growth of the attached vapor bubble nucleus to a superheat at 7.0 °C and 8.5 °C are evaluated with 50° and 90° contact angles. The results show that the enhancement of the contact angle changes the velocity and temperature fields around the bubble. It is observed that the growing size and base of the bubble is increased with increasing the wall superheat, but the bubble departure diameter and time are decreased. The electric field results in raising the number of detached bubbles from the superheat at a certain time interval but decreasing the bubbles departure size. Additionally, the formation of stretched bubbles enhances the rate of heat flux and there is a non-linear relationship between the applied voltage and heat flux.

在这项研究中，使用数值模型研究了单泡电流体动力学效应对电场应力下水的两相层流的影响。还开发了2D轴对称模型来研究单个气泡的增长和偏离。相场法用于跟踪液体和气体之间的相。以50°和90°的接触角评估附着的气泡气泡在7.0°C和8.5°C下过热的生长。结果表明，接触角的增加改变了气泡周围的速度和温度场。可以看出，随着壁过热的增加，气泡的尺寸和底部增大，但气泡的离开直径和时间减小。电场导致在一定的时间间隔内从过热中分离出来的气泡数量增加，但气泡的离开尺寸减小。另外，拉伸气泡的形成提高了热通量的速率，并且在施加的电压和热通量之间存在非线性关系。