Symmetric vortices are shed in the wake of a cylinder that is free to oscillate in the direction of flow. At lower flow velocities (left) these vortices stay parallel to each other in the wake. At slightly higher flow velocities (right) the vortices are shed simultaneously, but their size and direction of motion in the wake alternate in each cycle of oscillations. We call these vortices alternating symmetric vortices.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.