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金属矿山 ›› 2010, Vol. 39 ›› Issue (2): 103-106.

• 机电与自动化 • 上一篇    下一篇

高梯度磁场中多根磁介质捕集磁性微粒的数值模拟

 王发辉, 王秀芳, 张丹   

  1. 河南理工大学
  • 出版日期:2010-02-15 发布日期:2010-11-09
  • 基金资助:

     河南省重点科技攻关项目(编号:072102290002),河南理工大学青年基金项目(编号:Q2009-28),河南理工大学硕士创新基金项目(编号:2008-M-3)。

Numerical Simulation for Multiple Magnetic Medium in Entrapping Magnetism Particles in High gradient Magnetic Field

 WANG  Fa-Hui, WANG  Xiu-Fang, ZHANG  Dan   

  1. 河南理工大学
  • Online:2010-02-15 Published:2010-11-09

摘要: 在分析高梯度磁场中磁性颗粒动力学行为的基础上,以FLUENT软件为计算工具,采用Euler-Lagrange方法对高梯度磁场中多根磁介质捕集磁性颗粒的过程进行了数值模拟。模拟结果表明:磁介质在捕集磁性微粒时,直径为150 μm的单根磁介质捕捉直径为10 μm颗粒的作用半径约为1 mm;当磁场中填充介质的横向间距为4 mm,并按多层交错方式排列时,磁介质捕集磁性微粒的数量和效率随填充介质数量的增加而提高,但介质达到一定数量后,再增加介质数量,捕集效率变化不明显。

关键词: 高梯度磁场, 磁介质, 磁性颗粒, 捕集效率, 数值模拟

Abstract: Based on the dynamic behavior analysis of magnetic particles in high gradient magnetic field, using FLUENT software as a calculation tool, the Euler-Lagrange method is adopted to make numerical simulation of magnetic media capture process of the multiple magnetic particles in high-gradient magnetic field. The simulation results show that when the magnetic media capture the magnetic particles, the single magnetic medium with diameter of 150 μm can capture the magnetic particle up to 10 μm in diameter with the action radius of 1 mm; When the horizontal spacing among medium fillings in magnetic field is 4 mm with multiple layers set in interlace, the efficiency of capturing magnetic particles can be increased with the medium filling increased. But when the medium filling is up to a certain degree, the capturing efficiency did not change significantly with the increased mediums.

Key words: High gradient magnetic field, Magnetic media, Magnetic particle, Capturing efficiency, Numerical simulation