Abstract
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.
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