磁流变液在泡沫金属内部流动状态的数值分析
发布时间：2018-08-25 09:46
【摘要】：为研究磁流变液在泡沫金属中的流动状态,基于磁流体动力学及麦克斯韦方程,建立磁流变液在泡沫金属中流动的控制方程,并利用流体动力学仿真软件Fluent,模拟仿真磁流变液在多孔泡沫金属中的流动,得到压强和速度分布。结果表明:在流动区域内,磁场强度越大,层流越明显;磁场强度越大,由于泡沫金属复杂网状结构的影响,垂直于流动方向的速度逐渐减小,但由于磁场强度的变化而改变的速度值并不明显;即使对磁流变液施加垂直于流动方向的磁场,磁流变液也能够通过泡沫金属区域;随着磁场强度的增加,磁流变液的动态压强呈减小的趋势,而静态压强逐渐增大。
[Abstract]:In order to study the flow state of magnetorheological fluid in foam metal, the governing equation of magnetorheological fluid flow in foam metal was established based on magnetohydrodynamics and Maxwell equation. The fluid dynamics simulation software Fluent, was used to simulate the flow of magnetorheological fluid in porous metal foam, and the pressure and velocity distribution were obtained. The results show that the greater the magnetic field intensity, the more obvious the laminar flow, and the greater the magnetic field intensity, the smaller the velocity perpendicular to the flow direction due to the influence of the complex network structure of foam metal. However, the velocity change due to the change of magnetic field intensity is not obvious. Even if the magnetic field perpendicular to the flow direction is applied to the magnetorheological fluid, the magnetorheological fluid can still pass through the foam metal region; with the increase of the magnetic field intensity, The dynamic pressure of the magnetorheological fluid decreases, while the static pressure increases.
【作者单位】： 重庆工商大学检测控制集成系统重庆市工程实验室;重庆工商大学装备系统服役健康保障国际联合研究中心;
【基金】：国家自然科学基金项目(51375517) 装备系统服役健康保障国际联合研究中心开放基金项目(KFJJ201501001)
【分类号】：TB383.4
[Abstract]:In order to study the flow state of magnetorheological fluid in foam metal, the governing equation of magnetorheological fluid flow in foam metal was established based on magnetohydrodynamics and Maxwell equation. The fluid dynamics simulation software Fluent, was used to simulate the flow of magnetorheological fluid in porous metal foam, and the pressure and velocity distribution were obtained. The results show that the greater the magnetic field intensity, the more obvious the laminar flow, and the greater the magnetic field intensity, the smaller the velocity perpendicular to the flow direction due to the influence of the complex network structure of foam metal. However, the velocity change due to the change of magnetic field intensity is not obvious. Even if the magnetic field perpendicular to the flow direction is applied to the magnetorheological fluid, the magnetorheological fluid can still pass through the foam metal region; with the increase of the magnetic field intensity, The dynamic pressure of the magnetorheological fluid decreases, while the static pressure increases.
【作者单位】： 重庆工商大学检测控制集成系统重庆市工程实验室;重庆工商大学装备系统服役健康保障国际联合研究中心;
【基金】：国家自然科学基金项目(51375517) 装备系统服役健康保障国际联合研究中心开放基金项目(KFJJ201501001)
【分类号】：TB383.4
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