摘要
考虑外加磁场下磁流体中纳米磁性粒子所受的各种作用力,建立了用于模拟磁流体流动与传热特性的两相格子Boltzmann模型,模拟了外加不同方向梯度磁场下平板间磁流体的流动与传热过程,计算了磁流体与平板间对流换热的Nusselt数,分析了磁场梯度方向、大小对Nusselt数的影响．
By using the lattice Boltzmann method, the mesoscopic models for the ferrofluid are developed to simulate flow and thermal processes of the ferrofluid flowing through a micro channel. The models include a variety of forces and potentials acting on the ferrofluid system as well as heat exchange between the suspended magnetic nanoparticles and the ambient liquid. Some numerical examples are given to discuss the enhancement or suppression mechanism of heat transfer of the ferrofluid by adjusting the orientation and magnitude of the magnetic field gradient.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2006年第6期1020-1022,共3页
Journal of Engineering Thermophysics
基金
国家自然科学基金资助项目(No.50436020No.50376023)
作者简介
宣益民（1956-），男，安徽无为人，教授，博士生导师，主要从事强化传热、系统热控和节能技术的研究。
