Investigation of mesoscopic boundary conditions for lattice Boltzmann method in laminar flow problems
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F24%3A00377761" target="_blank" >RIV/68407700:21340/24:00377761 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.camwa.2024.08.009" target="_blank" >https://doi.org/10.1016/j.camwa.2024.08.009</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.camwa.2024.08.009" target="_blank" >10.1016/j.camwa.2024.08.009</a>
Alternative languages
Result language
angličtina
Original language name
Investigation of mesoscopic boundary conditions for lattice Boltzmann method in laminar flow problems
Original language description
For use with the lattice Boltzmann method, the macroscopic boundary conditions need to be transformed into their mesoscopic counterparts. Commonly used mesoscopic boundary conditions use the equilibrium density function, which introduces undesirable artifacts into the numerical solution, especially near interfaces with other types of boundary conditions. In this work, several variants of the mesoscopic boundary conditions are summarized and numerically investigated by means of benchmark problems for the incompressible Navier-Stokes equations with known analytical solutions. To improve the numerical approximation of the velocity and pressure fields, moment-based boundary conditions are extended for the D3Q27 velocity model. Furthermore, the interpolated boundary conditions are improved. These newly developed boundary conditions are shown to produce results with a substantially smaller numerical error.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10102 - Applied mathematics
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Computers and Mathematics with Applications
ISSN
0898-1221
e-ISSN
1873-7668
Volume of the periodical
173
Issue of the periodical within the volume
November
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
15
Pages from-to
87-101
UT code for WoS article
001296881900001
EID of the result in the Scopus database
2-s2.0-85201191259