Effect of spacing on a pair of naturally oscillating circular cylinders in tandem arrangements employing IB-LB methods: Crossflow-induced vibrations

•Vortex-induced vibrations of naturally oscillating tandem cylinders are studied.•Crossflow-induced motion is considered for a range of in-line spacing ratios.•Both the cylinders are set to oscillate close to their natural frequencies.•Equation of motion is coupled with immersed boundary-lattice Bol...

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Bibliographic Details
Published in:International journal of mechanical sciences 2018-07, Vol.142-143, p.74-85
Main Authors: Haider, B.A., Sohn, C.H.
Format: Article
Language:English
Subjects:
Fluid-structure interaction
Immersed boundary method
Lattice Boltzmann method
Spacing ratio
Tandem cylinders
Vortex-induced vibrations
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Summary:•Vortex-induced vibrations of naturally oscillating tandem cylinders are studied.•Crossflow-induced motion is considered for a range of in-line spacing ratios.•Both the cylinders are set to oscillate close to their natural frequencies.•Equation of motion is coupled with immersed boundary-lattice Boltzmann method.•Four distinct flow regimes are identified based on the dynamic response of cylinders. [Display omitted] An efficient velocity-correction based immersed boundary-lattice Boltzmann method (IB-LBM) is employed and coupled with structural equations to investigate the vortex-induced vibration characteristics of two identical circular cylinders in various tandem arrangements at a low Reynolds number of 100 with 1.0 
ISSN:0020-7403
1879-2162
DOI:10.1016/j.ijmecsci.2018.04.032