hal-03892372
https://cnrs.hal.science/hal-03892372
https://cnrs.hal.science/hal-03892372/document
https://cnrs.hal.science/hal-03892372/file/Orsi%20et%20al_2023_Frame-invariant%20sub-grid%20corrections%20to%20the%20Fictitious%20Domain%20Method%20for%20the.pdf
doi:10.1016/j.jcp.2022.111823
[UNICE] Université Nice Sophia Antipolis
[CNRS] CNRS - Centre national de la recherche scientifique
[INPHYNI] Institut de Physique de Nice
[UNIV-COTEDAZUR] Université Côte d'Azur
Frame-invariant sub-grid corrections to the Fictitious Domain Method for the simulation of particulate suspensions in nonlinear flows using OpenFOAM
Orsi, Michel
Lobry, Laurent
Peters, François
[PHYS.PHYS.PHYS-FLU-DYN] Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn]
ART
Suspensions Nonlinear flows Sub-grid corrections Fictitious Domain Method Discrete element method OpenFOAM
A particle-scale simulation method for non-Brownian suspensions at low Reynolds numbers is presented, which is well suited to nonlinear flows. It is based on a Fictitious Domain Method supplemented by sub-grid corrections (Gallier et al., 2014 [16]). In the original method, the standard sub-grid corrections involve the underlying suspension linear flow. The conditions required to remove this ambient flow from the sub-grid corrections, while keeping frame indifference, are determined. A sub-grid correction matrix is built for the particle-particle and particle-wall hydrodynamic interactions, such that the mentioned conditions inherently hold. The method is validated against various flows that involve a few particles or a concentrated suspension in linear and nonlinear flows, with various boundary conditions.
2023-02
2024-12-09
en
Journal of Computational Physics
Elsevier