Investigation of Flow around a Circular Cylinder in Laminar and Turbulent Flow using the Lattice Boltzmann Method

被引：5
|
作者：
Hamane, Dawoud [1 ]
Guerri, Ouahiba [1 ]
Larbi, Salah [2 ]
机构：
[1] CDER, Algiers 16340, Algeria
[2] Ecole Natl Polytech, Algiers, Algeria
来源：
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE OF NUMERICAL ANALYSIS AND APPLIED MATHEMATICS 2014 (ICNAAM-2014) | 2015年 / 1648卷
关键词：
Lattice Boltzmann method; D2Q9; model; Laminar flow; turbulent flow LES; Circular cylinder;
D O I：
10.1063/1.4913149
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
This paper deals with Lattice Boltzmann computation of two-dimensional incompressible flow past a circular cylinder confined in a channel. It is known that the nature of flow past the cylindrical obstacle is very complex, then we focus our study in vortex structures on laminar flow at different Reynolds numbers Re= 20,40, 100 and 300 then, an LBM-LES method is used to solve turbulent flow with high Reynolds number. A two dimensional nine-velocity square lattice (D2Q9) model is used. The obtained results show that the applied Lattice Boltzmann method can effectively capture vortex shedding and other features.
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页数：4
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