A Simplified Lattice Boltzmann Method for Turbulent Flow Simulation

被引：2

作者：

Jiang, Lan ^{[1
,2
]}

Gu, Xiangyu ^{[4
]}

Wu, Jie ^{[1
,2
,3
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Yudao St 29, Nanjing 210016, Jiangsu, Peoples R China

[2] Nanjing Univ Aeronaut & Astronaut, Dept Aerodynam, Yudao St 29, Nanjing 210016, Jiangsu, Peoples R China

[3] Nanjing Univ Aeronaut & Astronaut, Minist Ind & Informat Technol, Key Lab Unsteady Aerodynam & Flow Control, Yudao St 29, Nanjing 210016, Jiangsu, Peoples R China

[4] China Acad Launch Vehicle Technol, Nandahongmen St 1, Beijing 100076, Peoples R China

来源：

ADVANCES IN APPLIED MATHEMATICS AND MECHANICS | 2022年 / 14卷 / 05期

基金：

中国国家自然科学基金;

关键词：

SHSLBM; LES model; refined mesh; lid-driven cavity flow; cavity flow; LID-DRIVEN CAVITY; REYNOLDS-NUMBER; MODEL;

D O I：

10.4208/aamm.OA-2021-0056

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

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.

引用

页码：1040 / 1058

页数：19

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