Articles you may be interested in A self-consistent model for the saturation dynamics of the vortex shedding around the mean flow in the unstable cylinder wake Study of the long-time dynamics of a viscous vortex sheet with a fully adaptive nonstiff method We develop a model to numerically study the dynamics of vortex streets in channel flows. Previous work has studied the vortex wakes of specif...

Abstract The Pancharatnam–Berry phase induced by the winding topology of polarization around a vortex singularity at bound states in continuum (BIC) provides unique approach to optical (OV) generation. BIC-based OV generators have potential outperform their counterparts that rely on spatial variations terms design feasibility, fabrication complexity, and robustness. However, given fact this cla...

Vortex rings are one of the fundamental flow structures in nature. In this paper, the generation of circulation and vortex rings by a vortex generator with a static converging conic nozzle exit is studied numerically. Conic nozzles can manipulate circulation and other flow invariants by accelerating the flow, increasing the Reynolds number, and by establishing a two-dimensional flow at the exit...

Vortex generators (VGs) are a passive method by which to alleviate boundary layer separation (BLS). The device-induced streamwise vortices propagate downstream. There is then lift-off from the surface and vortex decays. effectiveness of VGs depends on their geometrical configuration, spacing, flow characteristics. In high-speed regime, must be properly positioned upstream BLS region. Measuremen...

The movements of organisms can be thought of as aggregations of motion primitives: motion segments containing one or more significant actions. Here, we present a means to identify and characterize motion primitives from recorded movement data. We address these problems by assuming that the motion sequences can be characterized as a series of dynamical-system-based pattern generators. By adoptin...

Generation of vortices enhances heat transfer by swirl, flow destabilization and development of viscous layers. They may increase heat transfer by several hundred percent. Prior to the use of vortices to influence heat transfer it must be known how different vortices are generated and controlled, and how they interact with the base flow and temperature field. To select the most appropriate vort...