Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24690
Title: Three-dimensional wake interactions for two side-by-side cylinders in a cross flow
Authors: Liu, Y 
Cui, ZX
Keywords: Three-dimensional flow
Two cylinders
LBM
Issue Date: 2006
Publisher: Taylor & Francis
Source: International journal of computational fluid dynamics, 2006, v. 20, no. 6, p. 379-389 How to cite?
Journal: International journal of computational fluid dynamics 
Abstract: Three-dimensional (3D) flow over two side-by-side circular cylinders is numerically studied for understanding the complex wake interference behind the cylinder pair. The two cylinders are bounded by two spanwise end plates. A multiple-relaxation-time lattice Boltzmann method (MRT-LBM) is used for the solution of 3D unsteady flow. The simulations are carried out with Reynolds number Re = 200, aspect ratio L/D = 16 and four transverse pitch ratios: T/D = 1.2, 1.5, 2.0 and 3.0, where Re is defined by incoming velocity U, cylinder diameter D and kinetic viscosity ν, L is cylinder span length and T is center to center spacing between the cylinder pair. Numerical results show that the wake patterns depend on not only Re and T/D, but also the end-flow conditions. At T/D = 2.0, the mutual interference between the two cylinders leads to two flip–flopping vortex streets; with the gap flow biased randomly, intermittently towards one cylinder or the other. Both the wake street and statistics of fluid force vary along the cylinder span considerably, indicating strong three dimensionality of the wake flows and their interaction.
URI: http://hdl.handle.net/10397/24690
ISSN: 1061-8562
DOI: 10.1080/10618560601001155
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

6
Citations as of Apr 19, 2016

WEB OF SCIENCETM
Citations

3
Last Week
0
Last month
0
Citations as of Jan 20, 2017

Page view(s)

37
Last Week
0
Last month
Checked on Jan 15, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.