1MSME - Laboratoire de Modélisation et Simulation Multi Echelle (Université Paris-Est, 5 Bd Descartes, 77454 Marne-la-Vallée, Cedex 2
Université Paris-Est Créteil Val de Marne(UPEC) Faculté des Sciences et Technologie - Equipe de Biomécanique
61 avenue du général de Gaulle 94010 Créteil Cedex - France)
Abstract : A slip model for gas flows in micro/nanochannels induced by external body forces is derived based on Maxwell's collision theory between gas molecules and the wall. The model modifies the relationship between slip velocity and velocity gradient at the walls by introducing a new parameter in addition to the classic Tangential Momentum Accommodation Coefficient. Three-dimensional Molecular Dynamics simulations of helium gas flows under uniform body force field between copper flat walls with different channel height are used to validate the model and to determine this new parameter.
https://hal-upec-upem.archives-ouvertes.fr/hal-00714817
Contributor : Celine Leonard
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Submitted on : Monday, March 7, 2016 - 9:12:45 AM
Last modification on : Wednesday, September 4, 2019 - 1:52:14 PM
Long-term archiving on : Wednesday, June 8, 2016 - 2:36:27 PM
Quy-Dong To, C. Bercegeay, Guy Lauriat, Céline Léonard, Guy Bonnet. A slip model for micro/nano gas flows induced by body forces. Microfluidics and Nanofluidics, Springer Verlag, 2010, 8 (3), pp.417-422. ⟨10.1007/s10404-009-0532-4⟩. ⟨hal-00714817⟩
