Green NG, Ramos A, Gonzalez A, Morgan H, Castellanos A
Departamento de Electronica y Electromagnetismo, Facultad de Fisica, Universidad de Sevilla, Reina Mercedes s/n, 41012 Sevilla, Spain.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 2000 Apr;61(4 Pt B):4011-8. doi: 10.1103/physreve.61.4011.
Under the influence of an ac electric field, electrolytes on planar microelectrodes exhibit fluid flow. The nonuniform electric field generated by the electrodes interacts with the suspending fluid through a number of mechanisms, giving rise to body forces and fluid flow. This paper presents the detailed experimental measurements of the velocity of fluid flow on microelectrodes at frequencies below the charge relaxation frequency of the electrolyte. The velocity of latex tracer particles was measured as a function of applied signal frequency and potential, electrolyte conductivity, and position on the electrode surface. The data are discussed in terms of a linear model of ac electroosmosis: the interaction of the nonuniform ac field and the induced electrical double layer.
在交流电场的影响下，平面微电极上的电解质会出现流体流动。电极产生的非均匀电场通过多种机制与悬浮流体相互作用，从而产生体力和流体流动。本文展示了在低于电解质电荷弛豫频率的频率下，微电极上流体流动速度的详细实验测量结果。测量了乳胶示踪颗粒的速度与施加信号频率、电势、电解质电导率以及电极表面位置的函数关系。根据交流电渗的线性模型对数据进行了讨论：非均匀交流场与感应电双层的相互作用。
