纳米磁性流体非牛顿特性分析  

Analysis on Characteristics of Nano Non-Newtonian Magnetic Fluid

作　　者：封士彩[1] Feng Shicai(Mechanical Engineering School, Changshu institute of Technology, Suzhou, Jiangsu, 215500, China)

机构地区：[1]常熟理工学院机械工程学院,江苏苏州215500

出　　处：《绿色科技》2017年第20期176-179,共4页Journal of Green Science and Technology

摘　　要：指出了磁性流体是由磁性颗粒、载液和表面活性剂组成的一种胶体溶液。理论分析表明磁性流体可以看成是受着与牛顿流体不同的本构方程控制;试验分析表明磁性流体在磁场中属于非牛顿流体中塑性假塑性流体,即塑性剪切稀化流体,不同于普通的牛顿流体和非牛顿流体,也不同于通常的两相流。这对磁性流体应用中的动力学分析具有一定的指导作用。Magnetic fluid is a colloidal solution which composed of magnetic particles and carrier liquid and surfaceactive agent.Theoretical analysis indicates that the magnetic fluid can be regarded as subject to different constitutive equations controlled by Newtonian fluid. Experimental analysis indicates that the magnetic fluid in a magnetic field belongs to plastic pseudoplastic fluid in the non--newtonian fluid.That is plastic shear thinning fluid which is different from ordinary Newtonian fluids and non--newtonian fluid and is different from the usual two phase flow. So, there is a certain guiding role in the application of magnetic fluid dvnnmlr 1,~;~

关 键 词：纳米磁性流体 非牛顿特性 塑性剪切稀化流体 

分 类 号：TB30[一般工业技术—材料科学与工程]