Dynamics of nonstationary dipole vortices

The dynamics of tilted dipole vortices in the equivalent barotropic vorticity (or Hasegawa-Mima) equation is studied. A recent theory is compared with numerical simulations and found to describe the short time behavior of dipole vortices well. In the long time limit the dipoles are found to either disintegrate or relax toward a steady eastward propagating dipole vortex. This relaxation is a consequence of nonviscous enstrophy loss by the dipole vortex.


Published in:
Physics of Fluids A, 5, 3, 622-629
Year:
1993
Publisher:
AMER INST PHYSICS
ISSN:
0899-8213
Laboratories:




 Record created 2013-11-12, last modified 2018-03-17

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