Modelling of the transport in electrically charged porous media including ionic exchanges

被引：29

作者：

Lemaire, Thibault ^{[1
]}

Kaiser, Joanna ^{[1
]}

Naili, Salah ^{[1
]}

Sansalone, Vittorio ^{[1
]}

机构：

[1] Univ Paris Est, Lab Modelisat & Simulat Multi Echelle, MSME UMR 8208 CNRS, F-94010 Creteil, France

来源：

MECHANICS RESEARCH COMMUNICATIONS | 2010年 / 37卷 / 05期

关键词：

Multiscale modelling; Charged porous media; Ionic exchanges; Nernst-Planck equations; CORTICAL BONE; FLUID; SCALE;

D O I：

10.1016/j.mechrescom.2010.05.009

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this study, a multiscale model of interstitial fluid transport within bone tissues is proposed. Based on an asymptotic homogenization procedure, it takes into account the possible ionic exchanges at the pore level. Since these chemical reactions directly change the physico-chemical properties of the tissues, the macroscopically observed flow is also modified as shown by the calculated effective diffusion coefficients. Such an approach is interesting to study the bone remodelling signals expression. Due to the presence of charged surfaces in the bone porous matrix, the electrochemical phenomena occurring in the vicinity of mechano-sensitive bone cells, the osteocytes, are key elements in the cellular expression. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：495 / 499

页数：5

共 21 条

[1]

[Anonymous], 1953, SOIL SCI

[2] TAYLOR DISPERSION IN POROUS-MEDIA - ANALYSIS BY MULTIPLE SCALE EXPANSIONS [J].