Numerical simulation of flows around two circular cylinders by mesh‐free least square‐based finite difference methods
Numerical simulation of flows around two circular cylinders by mesh‐free least square‐based finite difference methods
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DOI：
10.1002/fld.1281
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发表时间：
2007-01
影响因子：
1.8
通讯作者：
H. Ding;Chi-Wang Shu;K. Yeo;D. Xu
中科院分区：
文献类型：
--
作者：
H. Ding;Chi-Wang Shu;K. Yeo;D. Xu
本文应用基于无网格最小二乘法的有限差分（MLSFD）方法，对并排和串联布置的两个圆柱体周围的流场进行数值研究。对于每种布置方式，考虑了各种几何排列，以揭示由两个圆柱体之间的间隙所表征的不同流态。在这项工作中，流动模拟是在低雷诺数范围（即雷诺数Re = 100和200）内进行的。两个圆柱体周围的瞬时涡量等值线和流线被用作可视化辅助工具。提供了一些从解中计算出的流动参数，如斯特劳哈尔数、阻力系数和升力系数，并与其他研究人员提供的结果进行了定量比较。版权所有© 2006约翰威立父子有限公司。
In this paper, the mesh‐free least square‐based finite difference (MLSFD) method is applied to numerically study the flow field around two circular cylinders arranged in side‐by‐side and tandem configurations. For each configuration, various geometrical arrangements are considered, in order to reveal the different flow regimes characterized by the gap between the two cylinders. In this work, the flow simulations are carried out in the low Reynolds number range, that is, Re=100 and 200. Instantaneous vorticity contours and streamlines around the two cylinders are used as the visualization aids. Some flow parameters such as Strouhal number, drag and lift coefficients calculated from the solution are provided and quantitatively compared with those provided by other researchers. Copyright © 2006 John Wiley & Sons, Ltd.