Finite-volume versus streaming-based lattice Boltzmann algorithm for fluid-dynamics simulations: A one-to-one accuracy and performance study

Kalyan Shrestha, Gilmar Mompean, and Enrico Calzavarini
Phys. Rev. E 93, 023306 – Published 22 February 2016

Abstract

A finite-volume (FV) discretization method for the lattice Boltzmann (LB) equation, which combines high accuracy with limited computational cost is presented. In order to assess the performance of the FV method we carry out a systematic comparison, focused on accuracy and computational performances, with the standard streaming lattice Boltzmann equation algorithm. In particular we aim at clarifying whether and in which conditions the proposed algorithm, and more generally any FV algorithm, can be taken as the method of choice in fluid-dynamics LB simulations. For this reason the comparative analysis is further extended to the case of realistic flows, in particular thermally driven flows in turbulent conditions. We report the successful simulation of high-Rayleigh number convective flow performed by a lattice Boltzmann FV-based algorithm with wall grid refinement.

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  • Received 11 August 2015

DOI:https://doi.org/10.1103/PhysRevE.93.023306

©2016 American Physical Society

Physics Subject Headings (PhySH)

Fluid Dynamics

Authors & Affiliations

Kalyan Shrestha*, Gilmar Mompean, and Enrico Calzavarini

  • Laboratoire de Mécanique de Lille CNRS/UMR 8107, Université Lille 1 & Polytech'Lille, Cite Scientifique, Av. P. Langevin, F-59650 Villeneuve d'Ascq, France

  • *kalyan.shrestha@polytech-lille.fr

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Issue

Vol. 93, Iss. 2 — February 2016

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