Simulated Vortex Dynamics in a Porous-Body Wake
This video presents the result of a numerical simulation on the wake
generated by a porous body. The wake flow is simulated by inserting
small-scale discrete vortices into a uniform stream, and the colors
in the video represent the magnitude of vorticity. The initial flow
field is subjected to a small perturbation based on experimental data.
The evolution of the wake flow is manifested by the merging and
interactions of the small-scale vortices.
The objective of this investigation is to study the merging and
inter-action processes of vortices and the formation of large eddies in
the flow. Such an investigation is of importance to many flow-related
industrial and environmental problems, such as mixing, cooling,
combustion and dispersion of air-borne or water-borne contaminants.
Initial flow and colour legend for vorticity.
(14.5 KB gif image)
![[movie icon]](vortex.gif)
Visualization of the evolution of the wake flow.
(0.38 MB mpeg-1 movie)
Initial flow and colour legend for vorticity.
(14.5 KB gif image)