TY - JOUR
T1 - A Simplified Lattice Boltzmann Method for Turbulent Flow Simulation
AU - Jiang , Lan
AU - Gu , Xiangyu
AU - Wu , Jie
JO - Advances in Applied Mathematics and Mechanics
VL - 5
SP - 1040
EP - 1058
PY - 2022
DA - 2022/06
SN - 14
DO - http://doi.org/10.4208/aamm.OA-2021-0056
UR - https://global-sci.org/intro/article_detail/aamm/20551.html
KW - SHSLBM, LES model, refined mesh, lid-driven cavity flow, cavity flow.
AB - <p style="text-align: justify;">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.</p>