Evolution of a vortex ring towards collapse. Regions of large
vortex stretching (color map in figure) appear as collapse takes place.
Evolution of a vortex ring towards collapse. Regions of large
vortex stretching (color map in figure) appear as collapse takes place.
Collapse with test filaments
Off the filament strain-rate field is studied via test filaments,
which take the maximum amplification.
Collapse region in multifilament simulation. Vortex elements,
vorticity magnitude isosurface and maximum strain-rate are presented
in the diagnostics box surrounding the collapse region.
Vorticity isosurface in collapse region.
The formation of small scales with large vorticity amplification is
shown via the isosurface technique.
Filament surgery.
Vortex reconnection process in a multi-filament simulation with surgery.