【摘要】 采用周期性空间模型描述多孔介质 ,根据电动力学理论及计算流体动力学方法对多孔介质内的电渗流动行为进行数值模拟 ,得到多孔介质孔内与颗粒表面可视化的流场 ,并对比了多孔介质中压力场驱动与电场驱动的流体流动特性 ,显示出电渗在强化固体表面流体流动所具有的优势更多还原

【Abstract】 Electroosmosis is one of the fundamental ways of liquid transport in solid liquid separation processes driven by electric field A numerical simulation of the electroosmotic flow in porous media was made by using computational fluid dynamics(CFD) method, in which the solid phase was simulated by cylinders of equal diameters arranged in a regular pattern in response to a given porosity The electroosmotic flow status inside porous media as well as at solid surface was visualized The advantage of electroosmotic flow in terms of strengthening the liquid flow at solid surface was shown through the comparison with the hydraulically pressurized liquid flow更多还原