Simulation of magnetorheological fluid sedimentation considering Brownian and Van der Waals forces
In an effort to enhance the research efficiency of magnetorheological fluid(MRF)sedimentation sta-bility and to improve the current reliance on experimental measurement for assessing sedimentation perform-ance,this paper employs a kinetic approach to simulate a microscale mechanical model for magnetic particles.We propose a simulation method for MRF sedimentation under zero magnetic field conditions and validate it through inductance-based sedimentation detection experiments.Since MRF sedimentation occurs in the absence of a magnetic field,we extend the microscale mechanical model,originally developed under the influence of a magnetic field,by introducing the effects of Brownian and van der Waals forces.The simulation method is pa-rameterized with MRF-specific values and compared against experimental data obtained through inductance-based sedimentation detection.The results demonstrate that the introduced simulation method,incorporating Brownian and van der Waals forces,accurately predicts MRF sedimentation rates,effectively addressing the time-consuming nature of current investigations into MRF sedimentation stability.
magnetorheological fluidnumerical simulationsedimentation stabilityBrownian forceVan der Waals force
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