Open AccessContact problems for particles in a shear flow
Author(s) -
Nicolas Verdon,
Aline Lefebvre-Lepot,
Laurent Lobry,
Patrice Laure
Publication year - 2010
Publication title -
european journal of computational mechanics
Language(s) - English
Resource type - Journals
eISSN - 2642-2085
pISSN - 2642-2050
DOI - 10.13052/ejcm.19.513-531
Subject(s) - computation , mechanics , shear flow , flow (mathematics) , lagrangian , displacement (psychology) , particle (ecology) , domain (mathematical analysis) , stokes flow , shear (geology) , classical mechanics , physics , mathematics , computer science , materials science , mathematical analysis , geology , algorithm , composite material , psychotherapist , psychology , oceanography
This paper focuses on improving the description of the contact between solid particles in a fluid flow. The numerical approach used is related to the fictitious domain method for the fluid–solid problem. It is associated to a gluey particle model in order to improve the behaviour of the particles during their contacts as a Lagrangian method is applied for their displacement. The numerical methodology is validated through 2D and 3D computations describing interactions of two particles in a shear flow. The results obtained show the ability of the scheme to recover the reversibility of the Stokes equations, even for 3D configurations. Finally, another example is studied with larger number of particles.