永磁体在磁流体中自悬浮能力的数值计算

永磁体能否在磁流体中自悬浮，是实现磁流体惯性传感器的关键。通过标量磁势法计算封闭容器里永磁体在磁流体中产生的磁场以及对磁场分布进行数值计算，借助边界积分求得永磁体在磁流体中的受力大小，分析永磁体在磁流体中的悬浮能力。结果表明，在没有外磁场作用情况下，合理选择磁流体、永磁体及容器参数，可以实现永磁体在磁流体中自悬浮。

Numerical Simulation of Magnet Self-levitation in Vessels Filled with Magnetic Fluid

Whether magnetic fluid inertia sensor works or not depends on the suspending of magnet in magnetic fluid. The paper utilizes the method of magnetic scalar potential to compute the distribution of magnetic field. By virtue of boundary integral, the magnetic force on magnet in a vessel filled with magnetic fluid is obtained, and the possibility of levitation of magnet is analyzed. The results indicate that in absence of external magnetic field, when the parameters of magnetic fluid, magnet and vessel are properly chosen, magnet can be self-levitated in magnetic fluid.