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    Lattice-Boltzmann coupled models for advection-diffusion flow on a wide range of Péclet numbers

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    dapelo_et_al_2021 (1.876Mb)
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    Publication date
    2021-04
    Author
    Dapelo, Davide
    Simonis, S.
    Krause, J.J.
    Bridgeman, John
    Keyword
    Lattice-Boltzmann
    OpenLB
    Advection-diffusion
    Finite-difference
    Rights
    (c) 2021 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY license (https://creativecommons.org/licenses/by/4.0/)
    Peer-Reviewed
    Yes
    Open Access status
    Gold
    
    Metadata
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    Abstract
    Traditional Lattice-Boltzmann modelling of advection–diffusion flow is affected by numerical instability if the advective term becomes dominant over the diffusive (i.e., high-Péclet flow). To overcome the problem, two 3D one-way coupled models are proposed. In a traditional model, a Lattice-Boltzmann Navier–Stokes solver is coupled to a Lattice-Boltzmann advection–diffusion model. In a novel model, the Lattice-Boltzmann Navier–Stokes solver is coupled to an explicit finite-difference algorithm for advection–diffusion. The finite-difference algorithm also includes a novel approach to mitigate the numerical diffusivity connected with the upwind differentiation scheme.
    URI
    http://hdl.handle.net/10454/18457
    Version
    Published version
    Citation
    Dapelo D, Simonis S, Krause JJ et al (2021) Lattice-Boltzmann coupled models for advection-diffusion flow on a wide range of Péclet numbers. Journal of Computational Science. 51: 101363.
    Link to publisher’s version
    https://doi.org/10.1016/j.jocs.2021.101363
    Type
    Article
    Collections
    Engineering and Informatics Publications

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