[Un micromélangeur chaotique : le micromélangeur en croix]
Dans cet article consacré au micromélange, après une brève revue sur le sujet, nous nous concentrons sur la présentation d'un micro-mélangeur particulier – le « micromélangeur en croix ». Il s'agit d'un système ouvert, où un écoulement stationnaire, dans un microcanal, est soumis à une perturbation hydrodynamique oscillante dans le temps ; ce système induit naturellement des trajectoires chaotiques, favorisant ainsi le mélange. L'article expose le principe de fonctionnement de ce système particulier, décrit des simulations numériques et présente une réalisation expérimentale.
In this article dedicated to micromixing, we concentrate here on a particular micromixer – the ‘cross-channel micromixer’. This mixer exploits an oscillatory perturbation to induce chaotic trajectories, favoring mixing. We present here theory, numerical simulations and experiments performed on this system.
Mots-clés : Micromélangeur, Microcanal, Mélange chaotique, Courbes de KAM, Tri de particules
Arash Dodge 1 ; Marie-Caroline Jullien 2 ; Yi-Kuen Lee 3 ; X. Niu 3 ; Fridolin Okkels 1 ; Patrick Tabeling 1
@article{CRPHYS_2004__5_5_557_0,
author = {Arash Dodge and Marie-Caroline Jullien and Yi-Kuen Lee and X. Niu and Fridolin Okkels and Patrick Tabeling},
title = {An example of a chaotic micromixer: the cross-channel micromixer},
journal = {Comptes Rendus. Physique},
pages = {557--563},
publisher = {Elsevier},
volume = {5},
number = {5},
year = {2004},
doi = {10.1016/j.crhy.2004.03.003},
language = {en},
}
TY - JOUR AU - Arash Dodge AU - Marie-Caroline Jullien AU - Yi-Kuen Lee AU - X. Niu AU - Fridolin Okkels AU - Patrick Tabeling TI - An example of a chaotic micromixer: the cross-channel micromixer JO - Comptes Rendus. Physique PY - 2004 SP - 557 EP - 563 VL - 5 IS - 5 PB - Elsevier DO - 10.1016/j.crhy.2004.03.003 LA - en ID - CRPHYS_2004__5_5_557_0 ER -
%0 Journal Article %A Arash Dodge %A Marie-Caroline Jullien %A Yi-Kuen Lee %A X. Niu %A Fridolin Okkels %A Patrick Tabeling %T An example of a chaotic micromixer: the cross-channel micromixer %J Comptes Rendus. Physique %D 2004 %P 557-563 %V 5 %N 5 %I Elsevier %R 10.1016/j.crhy.2004.03.003 %G en %F CRPHYS_2004__5_5_557_0
Arash Dodge; Marie-Caroline Jullien; Yi-Kuen Lee; X. Niu; Fridolin Okkels; Patrick Tabeling. An example of a chaotic micromixer: the cross-channel micromixer. Comptes Rendus. Physique, Microfluidics, Volume 5 (2004) no. 5, pp. 557-563. doi : 10.1016/j.crhy.2004.03.003. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2004.03.003/
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