Thermal transport of electromagnetohydrodynamic in a microtube with electrokinetic effect and interfacial slip
Thermal transport of electromagnetohydrodynamic in a microtube with electrokinetic effect and interfacial slip
复制标题
具有动电效应和界面滑移的微管中电磁流体动力学的热传输
DOI：
10.1016/j.colsurfa.2017.12.061
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Ding Zhaodong
中科院分区：
文献类型：
--
作者：
Chen Xingyu;Jian Yongjun;Xie Zhiyong;Ding Zhaodong
Thermally fully developed flow characteristics are investigated through a microtube. The combined influences of pressure driven, induced streaming potential field and an additional vertical magnetic field are taken into account in the microflow system. Flow velocity can be obtained with consideration of the slip boundary, magnetic field and lateral electric field. Subsequently, the analytical expression of induced streaming potential field is also derived by considering the conservation of net electrical current. A comparison of streaming potential with the experimental result is conducted and a linear relationship is also obtained between the pressure and streaming potential. According to the obtained velocity and streaming potential fields, we further study the temperature distribution in the presence of the influence of viscous dissipation and Joule heating by finite difference method. The distributions of streaming potential, velocity and temperature are depicted graphically. Besides, a significant non-dimensional temperature parameterNuis discussed in detail. Results show that the magnetic field and lateral electric field play a crucial role in the distributions of streaming potential, flow velocity and temperature. The present endeavor can be utilized to design the exquisite and efficient magnetofluid devices, especially within a specific regime of thermal transport characteristics.
