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Numerical simulation of flows around two circular cylinders by mesh‐free least square‐based finite difference methods
Author(s) -
Ding H.,
Shu C.,
Yeo K. S.,
Xu D.
Publication year - 2006
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.1281
Subject(s) - strouhal number , streamlines, streaklines, and pathlines , reynolds number , mathematics , vorticity , mechanics , geometry , drag coefficient , square (algebra) , lift (data mining) , flow (mathematics) , drag , lift coefficient , computational fluid dynamics , finite difference method , finite difference , flow visualization , physics , mathematical analysis , vortex , turbulence , computer science , data mining
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.