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MODÉLISATION NUMÉRIQUE DU COMPORTEMENT D'UNE PARTICULE SOUS CHAMP ÉLECTRIQUE DANS LES MICROSYSTEMES : DE LA DÉFORMATION AU DÉPLACEMENT

Abstract : A new numerical tool to predict the motion and deformation of particles subjected to an electric field in biological Microsystems has been developed. In a middle term, this tool will be used to optimize Lab-on-a-chip devices in the earliest design stages. Particles are handled in Microsystems by dielectrophoresis, which is associated to the motion induced by the polarization of dielectric materials when subjected to a nonuniform electric field. The numerical tool uses to follow the deformation of moving interfaces is the Boundary Element Method (BEM). Flows are supposed to be potential. This tool permits us to find Taylor results in droplets shapes and instability development in both DC and AC uniform electric field. The tool also fits well, when displacement is involved, as non uniform electric field is applied, with simplified analytical models. At this point, we do think that our numerical tool can be extended to deal with more general electrohydrodynamic problems.
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https://tel.archives-ouvertes.fr/tel-00011168
Contributor : Adel Mustapha Benselama <>
Submitted on : Friday, December 23, 2005 - 3:54:29 PM
Last modification on : Wednesday, November 4, 2020 - 2:35:30 PM
Long-term archiving on: : Friday, September 24, 2010 - 10:27:11 AM

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  • HAL Id : tel-00011168, version 4

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Adel Mustapha Benselama. MODÉLISATION NUMÉRIQUE DU COMPORTEMENT D'UNE PARTICULE SOUS CHAMP ÉLECTRIQUE DANS LES MICROSYSTEMES : DE LA DÉFORMATION AU DÉPLACEMENT. Energie électrique. Université Joseph-Fourier - Grenoble I, 2005. Français. ⟨tel-00011168v4⟩

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