Year: 2023
Author: Friedemann Klass, Alessandro Gabbana, Andreas Bartel
Communications in Computational Physics, Vol. 33 (2023), Iss. 1 : pp. 101–117
Abstract
We present the development of a non-reflecting boundary condition, based
on the Local One-Dimensional Inviscid (LODI) approach, for Lattice Boltzmann Models working with multi-speed stencils.
We test and evaluate the LODI implementation with numerical benchmarks, showing significant accuracy gains with respect to the results produced by a simple zero-gradient condition. We also implement a simplified approach, which allows handling
the unknown distribution functions spanning several layers of nodes in a unified way,
still preserving a comparable level of accuracy with respect to the standard formulation.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/cicp.OA-2022-0052
Communications in Computational Physics, Vol. 33 (2023), Iss. 1 : pp. 101–117
Published online: 2023-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 17
Keywords: Characteristic boundary condition non-reflective boundary conditions local one-dimensional inviscid boundary conditions lattice Boltzmann method multispeed high order models.
Author Details
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Perfectly Matched Layers and Characteristic Boundaries in Lattice Boltzmann: Accuracy vs Cost
Klass, Friedemann | Gabbana, Alessandro | Bartel, AndreasAIAA Journal, Vol. (2024), Iss. P.1
https://doi.org/10.2514/1.J064563 [Citations: 0] -
Characteristic boundary condition for thermal lattice Boltzmann methods
Klass, Friedemann | Gabbana, Alessandro | Bartel, AndreasComputers & Mathematics with Applications, Vol. 157 (2024), Iss. P.195
https://doi.org/10.1016/j.camwa.2023.12.033 [Citations: 1]