Two-Dimensional Barotropic and Baroclinic Vortices
In the atmosphere and the oceans and on other planets, coherent structures or vortices are easily identified. For this reason, the study of the stability of isolated vortices and the dynamics of the interaction of pairs, triades or more is of fundamental interest for refined models of the general circulation and of geostrophic turbulence. Processes of heat transfer and the dispersion of biochemical components are closely connected with coherent structures. Two dimensional vortex dynamics in barotropic fluid is also a key problem in free shear flows with or without rotation. In this case, the main question is connected with the stability of these vortices to three-dimensional disturbances.
KeywordsPotential Vorticity Core Radius Point Vortex Relative Vorticity Azimuthal Velocity
Unable to display preview. Download preview PDF.
- 3.Capéran, P. and Maxworthy,T.:An experimental investigation of the coalescence of two dimensional finite-core vortices , (submitted Phys. Fluids, 1986)Google Scholar
- 4.Flierl, G. R. Instability of vortices, in: WHOI Rep. n° 85–36 (1985), 119.Google Scholar
- 7.Dritschel, D.G. and Legras, B.: The elliptical model of two-dimensional vortex dynamics: part II: Disturbance equations . submitted to Phys Fluids A (1991).Google Scholar
- 18.Carnevale, G.F., Kloosterziel, R.C. and van Heijst, G.J.F.: Propagation of barotropic vortices over topographyin a rotating tank. J. Fluid Mech.(1991).Google Scholar
- 24.Verron, J. and Hopfinger, E.J.: The enigmatic merger conditions of two-layer bafoclinic vortices. CRAS, 1313 S.II (1991), 737.Google Scholar