@ARTICLE{Nguyen_Van_Luc_Numerical_2022, author={Nguyen, Van Luc and Ho, Duy Knanh}, volume={vol. 69}, number={No 3}, journal={Archive of Mechanical Engineering}, pages={541-565}, howpublished={online}, year={2022}, publisher={Polish Academy of Sciences, Committee on Machine Building}, abstract={The laminar flow around two side-by-side circular cylinders was numerically investigated using a vortex-in-cell method combined with a continuous-forcing immersed boundary method. The Reynolds number (Re) of the flow was examined in the range from 40 to 200, and the distance between the cylinders varies from 1.2 D to 6 D, where D is the cylinder diameter. Simulation results show that the vortex wake is classified into eight patterns, such as single-bluff-body, meandering-motion, steady, deflected-in-one-direction, flip-flopping, anti-phase-synchronization, in-phase-synchronization, and phase-difference-synchronization, significantly depending on the Re, the cylinder distance, and the initial external disturbance effects. The anti-phase-synchronization, in-phase-synchronization, and phase-difference-synchronization vortex patterns can be switched at a low Re after a long time evolution of the flow. In particular, the single-bluff-body and flip-flopping vortex patterns excite the oscillation amplitude of the drag and lift coefficients exerted on the cylinders.}, type={Article}, title={Numerical investigation of vortex wake patterns of laminar flow around two side-by-side cylinders}, URL={http://ochroma.man.poznan.pl/Content/124307/PDF/AME_2022_141517.pdf}, doi={10.24425/ame.2022.141517}, keywords={viscous fluid, vortex shedding, vortex wake pattern, vortex-in-cell method, two side-by-side cylinders}, }