Researchers have discovered that dense crowds can spontaneously synchronize into collective oscillations, with hundreds of ...

The process of vortex ring generation and propagation has received substantial treatment in the literature. A common ring generation geometry consists of a piston moving through tube that exits into a ...

These experiments examines the flow field in the region where a moving wall slides under a stationary one ... The transitional regime of vortex development is marked by the appearance of an ...