2020/04/01 by Andrea Montessori, Adriano Tiribocchi, Montessori, Andrea +5
Engineering · #Aerosol Filtration and Electrostatic Precipitation #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Fluid Dynamics and Vibration Analysis #Lattice Boltzmann Simulation Studies
paper · pdf · doi:10.48550/arxiv.2004.00304
openalex publication_date 2020/04/01 · openalex created_date 2022/07/26 · openalex updated_date 2026/08/01
In this work we discuss the coupling of two mesoscopic approaches for fluid\ndynamics, namely the lattice Boltzmann method (LB) and the multiparticle\ncollision dynamics (MPCD) citekapral2008multiparticle to design a new class\nof flexible and efficient multiscale schemes based on a dual representation of\nthe fluid observables.\n At variance with other commonly used multigrid methods, mostly oriented to\nhigh Reynolds and turbulent flows, the present approach is designed to capture\nthe physics at the smallest scales whenever the lattice Boltzmann alone falls\nshort of providing the correct physical information due to a lack of\nresolution, as it occurs for example in thin films between interacting bubbles\nor droplets in microfluidic crystals.\n The coupling strategies employed to pass the hydrodynamic information between\nthe LB and the MPCD are detailed and the algorithm is tested against the steady\nisothermal Poiseuille flow problem for different coupling configurations.\n