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Front-tracking by the level-set and the volume penalization methods in a two-phase microfluidic network
Abstract : Two-phase immiscible fluids in a two-dimensional micro-channels network are considered. The incompressible Stokes equations are used to describe the Newtonian fluid flow while the Oldroyd-B rheological model is used to capture the viscoelastic behavior. In order to perform numerical simulations in a complex geometry like a micro-channels network, the volume penalization method is implemented. To follow the interface between the two fluids, the level-set method is used and the dynamics of the contact line is modeled by Cox law. Numerical results show the ability of the method to simulate two-phase flows and to follow properly the contact line between the two immiscible fluids. Finally, simulations with realistic parameters are performed to show the difference when a Newtonian fluid is pushed by a viscoelastic fluid instead of a Newtonian one.
Cited literature [57 references]
https://hal.inria.fr/hal-01251457
Contributor : Charles-Henri Bruneau Connect in order to contact the contributor
Submitted on : Wednesday, January 6, 2016 - 11:36:56 AM
Last modification on : Saturday, December 4, 2021 - 3:43:08 AM
Long-term archiving on: : Thursday, April 7, 2016 - 3:56:16 PM
Contributor : Charles-Henri Bruneau Connect in order to contact the contributor
Submitted on : Wednesday, January 6, 2016 - 11:36:56 AM
Last modification on : Saturday, December 4, 2021 - 3:43:08 AM
Long-term archiving on: : Thursday, April 7, 2016 - 3:56:16 PM
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PBT-IJNMF.pdf
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