Multiphysical modelling of fluid transport through osteo-articular media

Anais da Academia Brasileira de Ciências

Thibault Lemaire¹  Salah Naili¹  Vittorio Sansalone¹ 

[1] ,Université Paris Est Biomécanique Laboratoire de Modélisation et Simulation Multi-EchelleCréteil,France

关键词: biomechanics;    multi-scale;    homogenization;    osteo-articular tissues;    coupling effects;    biomecânica;    multiescala;    homogeneização;    tecidos osteo articulares;    efeitos de acoplamento;   

DOI  :  10.1590/S0001-37652010000100011

来源: SciELO

【 摘 要 】

In this study, a multiphysical description of fluid transport through osteo-articular porous media is presented. Adapted from the model of Moyne and Murad, which is intended to describe clayey materials behaviour, this multiscale modelling allows for the derivation of the macroscopic response of the tissue from microscopical information. First the model is described. At the pore scale, electrohydrodynamics equations governing the electrolyte movement are coupled with local electrostatics (Gauss-Poisson equation), and ionic transport equations. Using a change of variables and an asymptotic expansion method, the macroscopic description is carried out. Results of this model are used to show the importance of couplings effects on the mechanotransduction of compact bone remodelling.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License