磁性流体行波泵驱动能力因素分析  

Analysis of Driving Capacity on Magnetic Fluid Traveling Wave Pump

作　　者：赵猛[1] 邹继斌[1] 尚静[1] 齐明[1] 

机构地区：[1]哈尔滨工业大学电气工程系,黑龙江哈尔滨150001

出　　处：《金属功能材料》2010年第1期38-40,共3页Metallic Functional Materials

基　　金：国家自然科学基金资助项目(50707005)

摘　　要：由于磁性流体内磁性颗粒的存在,使得在磁场作用下磁性流体的磁性颗粒也对外加磁场产生作用。采用迭代解偶计算法分析磁场作用下磁性流体的偶合问题。磁场强度、磁性流体的饱和磁化强度对行波泵的驱动能力产生直接的影响,随着磁场强度、磁性流体饱和磁化强度的不断增大,行波泵的驱动能力也不断增强。磁性流体的粘度对行波泵的驱动能力产生间接影响。随着磁场强度的变化,磁性流体的粘度也发生变化。其变化规律为:粘度随着磁场强度的增大而逐渐增大并且变化率逐渐变小。粘度越大,行波泵的驱动能力就越差。磁极形状的变化对磁性流体行波泵的驱动能力产生影响,随着磁极形状的变化,泵腔内磁感应强度也不断变化。当磁极同圆心的夹角到达45°时,驱动能力达到最大。The magnetic fluid affects the applied magnetic field because of magnetic particles in the magnetic fluid. The decoupling of magnetic fluid in magnetic field was investigated by the iteration method. The magnetic field in- tensity and the saturation magnetization of magnetic fluid affect driving capacity of magnetic fluid traveling wave pump directly. The driving capacity increases with increasing the magnetic field intensity and the saturation magneti- zation of magnetic fluid. The viscosity of the magnetic fluid affects the driving capacity too. The viscosity of mag- netic fluid can change when the magnetic field changes. The viscosity increases when magnetic field increases. When magnetization of magnetic fluid reaches saturation, the viscosity changes tardily. The driving capacity reduces with the increasing the viscosity. The shape of the magnetic pole affects the driving capacity. The magnetic induction in the pump can be changed with changing the shape of magnetic pole. The driving capacity is maximum when the pole angle is 45°.

关 键 词：磁性流体 行波泵 驱动能力 

分 类 号：O361.3[理学—流体力学]