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Chen Juhui, An Ran, Shu Lingfeng, Li Dan, Liu Xiaogang, Mao Ying, Chen Jiyuan, Gao Haoming, Lyu Wensheng, Meng Fanqi. Study on motion of multi-component ferromagnetic particles with modified magnetization model. Chinese Journal of Theoretical and Applied Mechanics, 2024, 56(3): 740-750. DOI: 10.6052/0459-1879-23-432
Citation: Chen Juhui, An Ran, Shu Lingfeng, Li Dan, Liu Xiaogang, Mao Ying, Chen Jiyuan, Gao Haoming, Lyu Wensheng, Meng Fanqi. Study on motion of multi-component ferromagnetic particles with modified magnetization model. Chinese Journal of Theoretical and Applied Mechanics, 2024, 56(3): 740-750. DOI: 10.6052/0459-1879-23-432

STUDY ON MOTION OF MULTI-COMPONENT FERROMAGNETIC PARTICLES WITH MODIFIED MAGNETIZATION MODEL

  • Received Date: September 05, 2023
  • Accepted Date: November 13, 2023
  • Available Online: November 14, 2023
  • Published Date: November 14, 2023
  • Ferromagnetic particles are widely used in chemical environmental protection, biochemical engineering, energy and other fields because of their ferromagnetism. The penetrating nature of the magnetic field, for systems employing ferromagnetic particles, can be controlled by changing the magnetic field to control the motion of the particles within the system. In this paper, based on the traditional magnetization model, a modified P-E magnetization model with a wider range of applicability is proposed by using the relative reference system conversion method, which can calculate the magnetization force on ferromagnetic particles under the action of a magnetic field in any direction. Numerical simulations by coupling the finite volume method (FVM) with the discrete element method (DEM) to verify the accuracy of the modified P-E magnetization model and to simulate the motion of multicomponent particles in a magnetic field. The motion characteristics of ferromagnetic particles and inert particles in different ratios and magnetic fields were compared. The particle distribution, particle velocity vector and particle total energy were analyzed. The results show that in the multi-component particle system, the ferromagnetic particles still maintain the chain formation characteristics, but the chain formation speed and length decrease. The initial energy of ferromagnetic particles increases as the proportion of ferromagnetic particles grows, as does the number of polymer chains and the length of chain creation, and the ability to limit inert particles. Furthermore, when both horizontal and vertical magnetic fields are applied, the multi-component particle system achieves the fastest rate of stability. The rate of stabilization can be efficiently increased by increasing the number of ferromagnetic particles, causing the system to stabilize faster. When the magnetic field containing inclination Angle is applied, the time required for ferromagnetic particles to reach the stable state gradually decreases with the increase of the proportion of ferromagnetic particles, and it is difficult to shorten the stability time by changing the proportion of ferromagnetic particles.
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