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首页> 外文会议>NATO Advanced Research Workshop on Surface Waves in Anisotropic and Laminated Bodies and Defects Detection; 20011030-1102; Moscow(RU) >SURFACE ELECTROMAGNETIC PERTURBATIONS INDUCED BY UNSTEADY-STATE SUBSURFACE FLOW
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SURFACE ELECTROMAGNETIC PERTURBATIONS INDUCED BY UNSTEADY-STATE SUBSURFACE FLOW

机译：非稳态子表面流引起的表面电磁扰动

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The electrokinetic effect consists in generation of electric current by fluid flow through porous media and in the reverse effect of inducing flow by application of an electric field. Its primary cause is the difference in mobilities of ions, some of which are fixed at the surface of the solid matrix of the porous medium, while some dissolved counterions can move with the pore fluid, or force it to move, if an electric field is applied. Macroscopically, the flow and electric current are described by the equations u = -k/η ▽p + β▽ψ, I = -S[▽ψ - C▽p], C = α/S. (1.1) Here, k is the medium permeability, η is the fluid viscosity, S is the medium electric conductivity customarily expressed in terms of the fluid conductivity σ_f and the medium formation factor F as S = σ_f/F with F up to several tens. The Onsager relation holds between the coupling coefficients C and β:β = α ≡ CS. Details are given in [26, 9, 8].
机译：电动效应包括通过流过多孔介质的流体产生电流，以及通过施加电场来感应流动的相反效应。其主要原因是离子迁移率不同，其中一些离子固定在多孔介质的固体基质表面，而有些溶解的抗衡离子则可以随孔隙流体一起移动，或者在电场作用下迫使其移动。应用。宏观上，流量和电流由等式u = -k /η▽p +β▽ψ表示，I = -S [▽ψ-C▽p]，C =α/ S。 （1.1）这里，k是介质渗透率，η是流体粘度，S是通常以流体电导率σ_f和介质形成因数F表示为S =σ_f/ F且F最高为几十的介质电导率。耦合系数C与β：β=α≡CS之间保持Onsager关系。详细信息在[26，9，8]中给出。

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