Simulation of immiscible liquid–liquid flows in complex microchannel geometries using a front-tracking scheme - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Microfluidics and Nanofluidics Année : 2018

Simulation of immiscible liquid–liquid flows in complex microchannel geometries using a front-tracking scheme

Résumé

The three-dimensional two-phase flow dynamics inside a microfluidic device of complex geometry is simulated using a parallel, hybrid front-tracking/level-set solver. The numerical framework employed circumvents numerous meshing issues normally associated with constructing complex geometries within typical computational fluid dynamics packages. The device considered in the present work is constructed via a module that defines solid objects by means of a static distance function. The construction combines primitive objects, such as a cylinder, a plane, and a torus, for instance, using simple geometrical operations. The numerical solutions predicted encompass dripping and jetting, and transitions in flow patterns are observed featuring the formation of drops, 'pancakes', plugs, and jets, over a wide range of flow rate ratios. We demonstrate the fact that vortex formation accompanies the development of certain flow patterns, and elucidate its role in their un
Fichier principal
Vignette du fichier
Cross_Junction_Paper.pdf (31.91 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-02358420 , version 1 (17-05-2020)

Identifiants

Citer

Lyes Kahouadji, Emilia Nowak, Nina Kovalchuk, Jalel Chergui, Damir Juric, et al.. Simulation of immiscible liquid–liquid flows in complex microchannel geometries using a front-tracking scheme. Microfluidics and Nanofluidics, 2018, 22 (11), ⟨10.1007/s10404-018-2149-y⟩. ⟨hal-02358420⟩
26 Consultations
5 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More