The trapping and escape of buoyant vortex rings in sharply stratified fluids

Details The trapping and escape of buoyant vortex rings in sharply stratified fluids The trapping and escape of buoyant vortex rings in sharply stratified fluids

2011-10-15

arxiv.org/abs/1110.3435v1

Physics

Fluid Dynamics

video included

Scientific paper

In this fluid dynamics video we study the dynamics of miscible vortex rings falling in ambient strongly (near two-layer) stratified fluid. Experiments and direct numerical simulations using the variable density Navier-Stokes (VARDEN) solver are presented and compared. Critical phenomena are identified depending upon the key parameters of the experiment (fluid and ring densities, upper layer vortex travel distance, etc) in which the descending dense vortex ring may experience complete trapping, partial trapping, or fissioning into a cascade of smaller vortices. The interaction of the vortex ring with the upper layer fluids leads to viscous entrainment which alters the effective buoyancy of the ring. Upon impinging on a density transition, the entrained fluid imparts different dynamics as it attempts to regain equilibrium leading to the critical behaviors.

Affiliated with

Also associated with

No associations

Rating

The trapping and escape of buoyant vortex rings in sharply stratified fluids does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The trapping and escape of buoyant vortex rings in sharply stratified fluids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The trapping and escape of buoyant vortex rings in sharply stratified fluids will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-688062