微管道中纳米流体电磁流动及辐射传热  

Electromagnetohydrodynamic Flow and Heat Transfer of a Nanofluid in a Microchannel with Thermal Radiation

作　　者：谢凤华[1] 刘全生[2] 毕远宏 XIE Feng-hua;LIU Quan-sheng;BI Yuan-hong(Faculty of Building Engineer , Hohhot Vocational College , Hohhot 010050,China;School of Mathematical Sciences,Inner Mongolia University , Hohhot 010021,China;School of Statistics and Mathematics , Inner Mongolia University of Finance and Economics, Hohhot 010070)

机构地区：[1]呼和浩特职业学院建筑工程学院,呼和浩特010050 [2]内蒙古大学数学科学学院,呼和浩特010021 [3]内蒙古财经大学统计与数学学院,呼和浩特010070

出　　处：《内蒙古大学学报（自然科学版）》2019年第2期133-139,共7页Journal of Inner Mongolia University：Natural Science Edition

基　　金：国家自然科学基金(11562014;11579157;51779156);内蒙古自然科学基金(2017MS0108;2017MS0105)

摘　　要：利用德拜-休克线性化近似理论求解了微管道纳米流体的电磁流动及辐射传热问题,得到了电动宽度K、磁场强度Ha、辐射热参数Nr、焦耳热参数S以及纳米粒子的体积分数φ对纳米流体速度、温度及努赛尔数的影响.结果表明磁场显著地影响纳米流体的流场及温度场,纳米粒子的加入将明显地增强流体的热辐射传热效应.By employing the Debye-Hückel linearization,the heat transfer characteristics of a nanofluid flow through a parallel plate microchannel are investigated under the thermal radiation.The effects of K,Nr,Ha,S,andφare taken into account for velocity,temperature and Nusselt number of the nanofluid.The results reveal that the magnetic field and added nanoparticles have greatly impacted on electrokinetic effect and thermal radiation effect.

关 键 词：纳米流体 电磁流 电渗流 热辐射 

分 类 号：O361.3[理学—流体力学] O357.1[理学—力学]