Lattice-BGK simulation of a two-dimensional channel flow around a square cylinder
Guo Wei-Bin (郭卫斌)a, Wang Neng-Chao (王能超)ab, Shi Bao-Chang (施保昌)b, Guo Zhao-Li (郭照立)c
a School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China; b Parallel Computing Institute, Huazhong University of Science and Technology, Wuhan 430074, China; c State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
Abstract The confined flow around a square cylinder mounted inside a two-dimensional channel (blockage ratio $\beta=1/8$) was investigated in detail by a newly developed incompressible nonuniform lattice-BGK model. It is found that the vortex shedding behind the cylinder induces periodicity in the flow field, and the periodicity of the flow will lose for $Re>$300. A detailed analysis for a range of Reynolds numbers between 1 and 500 was presented. Quantitative comparisons with other methods show that the model gives accurate results for complex flows.
Received: 21 June 2002
Revised: 28 July 2002
Accepted manuscript online:
Fund: Project supported by the National Natural Science Foundation of China (Grant No 60073044), and the State Key Development Programme for Basic Research of China (Grant No G1999022207).
Cite this article:
Guo Wei-Bin (郭卫斌), Wang Neng-Chao (王能超), Shi Bao-Chang (施保昌), Guo Zhao-Li (郭照立) Lattice-BGK simulation of a two-dimensional channel flow around a square cylinder 2003 Chinese Physics 12 67
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
