On‐Chip Generation of Vortical Flows for Microfluidic Centrifugation

Gravity Wave Generation by Vortical Flows in a Rotating Frame

A Localized Approximation Method for Vortical Flows

An approximation method of Moore for Kelvin-Helmholtz instability is formulated as a general method for two-dimensional, incompressible, inviscid flows generated by a vortex sheet. In this method the nonlocal equations describing evolution of the sheet are approximated by a system of (local) differential equations. These equations are useful for predicting singularity formation on the sheet and...

Topological Methods for Visualizing Vortical Flows

The paper describes the application of topological methods to the visualization of vortical flow patterns that arise in simulations from Computational Fluid Dynamics. Two techniques are presented: the first is concerned with the exploration of complicated, instantaneous flow structures while the second one permits the visualization of their temporal evolution in large-scale transient simulation...

Mixing in vortical, chaotic and turbulent flows.

Mixing is discussed in relation to stirring as reflected in the geometry of advected interfaces, the behaviour of fluid-element pairs and their separation rates. Stirring is different in vortical, chaotic and turbulent flows because of qualitative differences in spatio-temporal flow structure, thus giving rise to different mixing laws. Important applications of the mixing and stirring propertie...

Compensating regime in axisymmetric vortical flows

Axisymmetric vortices with high level of axial vorticity are considered. Consistency conditions result in so-called compensating regime of the vortical flow. The power laws associated with this regime are applied to a series of vortices of different scales: bathtub vortex, tornadoes and tropical cyclones. Key–Words: vortical flows, bathtub vortex, tornado, tropical cyclone