Unsteady vortex structure in the wake behind bluff body was experimentally investigated by wind tunnel experiment. A flexible rectangular plate. which was made of a soft polyurethane block. shows the sway motion and flow-induced vibration caused by fluid force. https://www.jmannino.com/mega-save-KangVape-Onee-Stick-Disposable-3000-Puffs-12mL-special-find/