Three-dimensional single framework multi-component lattice Boltzmann equation method for vesicle hydrodynamics

SPENDLOVE, James, XU, Xu, SCHENKEL, Torsten, SEATON, Michael, HALLIDAY, Ian and GUNN, Julian (2021). Three-dimensional single framework multi-component lattice Boltzmann equation method for vesicle hydrodynamics. Physics of Fluids, 33 (7), 077110.

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Official URL: https://aip.scitation.org/doi/full/10.1063/5.00555...
Link to published version:: https://doi.org/10.1063/5.0055535
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    Abstract

    We develop a three dimensional immersed boundary chromodynamic multi-component lattice Boltzmann method capable of simulating vesicles, such as erythrocytes. The presented method is encapsulated in a single framework, where the application of the immersed boundary force in the automatically adaptive interfacial region results in correct vesicle behaviour. We also set-down a methodology for computing the principal curvatures of a surface in a three-dimensional, physical space which is defined solely in terms of its surface normal vectors. The benefits of such a model are its transparent methodology, stability at high levels of deformation, automatic-adaptive interface and potential for the simulation of many erythrocytes. We demonstrate the utility of the model by examining the steady state properties, as well as dynamical behaviour within shear flow. The stability of the method is highlighted through its handling of high deformations, as well as interaction with another vesicle.

    Item Type: Article
    Identification Number: https://doi.org/10.1063/5.0055535
    Page Range: 077110
    SWORD Depositor: Symplectic Elements
    Depositing User: Symplectic Elements
    Date Deposited: 22 Jun 2021 17:18
    Last Modified: 20 Jul 2021 13:30
    URI: http://shura.shu.ac.uk/id/eprint/28769

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