Year: 2022
Author: Lan Jiang, Xiangyu Gu, Jie Wu
Advances in Applied Mathematics and Mechanics, Vol. 14 (2022), Iss. 5 : pp. 1040–1058
Abstract
To simulate the incompressible turbulent flows, two models, known as the simplified and highly stable lattice Boltzmann method (SHSLBM) and large eddy simulation (LES) model, are employed in this paper. The SHSLBM was developed for simulating incompressible viscous flows and showed great performance in numerical stability at high Reynolds numbers, which means that this model is capable of dealing with turbulent flows by adding the turbulence model. Therefore, the LES model is combined with SHSLBM. Inspired by the less amount of grids required for SHSLBM, a local grid refinement method is used at relatively high Reynolds numbers to improve computational efficiency. Several benchmark cases are simulated and the obtained numerical results are compared with the available results in literature, which show excellent agreement together with greater computational performance than other algorithms.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/aamm.OA-2021-0056
Advances in Applied Mathematics and Mechanics, Vol. 14 (2022), Iss. 5 : pp. 1040–1058
Published online: 2022-01
AMS Subject Headings: Global Science Press
Copyright: COPYRIGHT: © Global Science Press
Pages: 19
Keywords: SHSLBM LES model refined mesh lid-driven cavity flow cavity flow.