摘要
非均匀磁场中磁流体对浸没其中的非磁性矿粒产生磁浮力.从磁浮效应、磁流体力学和电磁学等理论基础出发,构建起非磁性矿粒在磁流体中的受力模型.逐步引导出磁浮力的力学框架,在磁场梯度相反于重力方向时,非磁性矿粒将受到垂直向上的磁浮力作用.探究了影响磁浮力作用效果的重要因素.
Non-magnetic mineral grains,immersed in magnetic fluid in non-uniform magnetic field,are acted by magnetic buoyancy.Based on magnetic levitation effect,ferrohydromechanics,electromagnetism etc,the mechanical model of the nonmagnetic mineral particles in magnetic fluid is established.And the structure of the magnetic buoyancy is evaluated.As magnetic field gradient direction is vertically up,the grains are forced upward.And the important factors influencing the effect of magnetic buoyancy are analysed.
作者
李正录
张应强
魏镜弢
LI Zhenglu;ZHANG Yingqiang;WEI Jingtao(Jinchuan Group Co.Ltd.,Jinchang 737100,Gansu China;Kunming University of Science and Technology,Kunming 650500,China)
出处
《河南科学》
2018年第8期1192-1195,共4页
Henan Science
基金
校企基金项目(6488-20170021)
关键词
非磁性矿粒
磁流体
磁浮力
non-magnetic mineral grains
magnetic fluid
magnetic buoyancy
