Abstract The dynamic model of nanoparticle in the basefluid under the electric field is proposed to simulate the motion and track zone characteristics of nanoparticle in the basefluid under the electric field. The effects of electric field, temperature, zeta potential and radius of nanoparticle are discussed in the present study. Besides, the heat transfer enhancement mechanism of nanofluid under the electric field is analyzed. The results show that: the magnitude velocity of nanoparticle in the basefluid is enhanced little by the electric field. While, the track zone range of nanoparticle is enhanced greatly. Specifically, the track zone of nanoparticle under the electric field is increased by increasing the electric field intensity, temperature and zeta potential. However, that is decreased by increasing the radius of nanoparticle. By changing the direction of the electric field in a certain time, the track zone of nanoparticle can be controlled to limit in a certain range. The energy transport and thermal conductivity enhancement mechanism of nanofluid under the electric field is also analyzed in the present study.

中文翻译：

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电场作用下纳米流体的动力学计算及热强化机理分析

摘要 为了模拟电场作用下纳米粒子在基液中的运动和轨迹区特性，提出了电场作用下纳米粒子在基液中的动力学模型。本研究讨论了电场、温度、zeta 电位和纳米粒子半径的影响。此外，还分析了纳米流体在电场作用下的传热强化机理。结果表明：纳米粒子在基液中的大小速度受电场的影响很小。同时，纳米粒子的轨迹区范围大大增强。具体而言，通过增加电场强度、温度和zeta电位来增加电场下纳米粒子的轨迹区。然而，这会通过增加纳米粒子的半径而减少。通过在一定时间内改变电场方向，可以将纳米粒子的轨迹区控制在一定范围内。本研究还分析了纳米流体在电场作用下的能量传输和热导率增强机制。