Lattice Boltzmann Simulation of Flow Past a Finite Cylinder

4th International Conference on Mechanics and Mechatronics Research

机械制造;无线电电子学

Liu, Yi^1 ; Nie, Deming^1

Institute of Fluid Mechanics, China Jiliang University, China^1

关键词: Drag and lift coefficients;    Finite cylinders;    Lattice Boltzmann method;    Lattice Boltzmann simulations;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/224/1/012021/pdf
DOI  :  10.1088/1757-899X/224/1/012021

来源: IOP

【 摘 要 】

In this work the lattice Boltzmann method was adopted to simulate the flow past a finite cylinder which is mounted on a wall. The Reynolds number based on the height of the cylinder is ranging from 10 to 160. The effect of the Reynolds number on the flow pattern as well as the drag and lift coefficient of the cylinder was discussed. Results show that the flow becomes unsteady when the Reynolds number is larger than 60. Moreover, the flow pattern becomes more complex for larger Reynolds number.