Laboratory simulation of the stability loss of periodic zonal flows
Abstract
Kolmogoroff flow was simulated by the MHD excitation of electrolyte motion in an effort to model largescale zonal flows in planetary atmospheres (e.g., of the earth and Jupiter). A change in the experimental design which approximated the experiment to an idealized mathematical model disclosed a second LandauHopf bifurcation in the Kolmogoroff flow, which might clarify the mechanism for the excitation of oscillations of zonal circulation (the index cycle). It is concluded that the theory of selfoscillations in Kolmogoroff flow can apparently be developed by analogy with the theory of oscillation processes in a fourvortex system.
 Publication:

Akademiia Nauk SSSR Doklady
 Pub Date:
 1983
 Bibcode:
 1983DoSSR.273..582B
 Keywords:

 Atmospheric Circulation;
 Flow Stability;
 Kolmogoroff Theory;
 Magnetohydrodynamics;
 Oscillating Flow;
 Planetary Atmospheres;
 Secondary Flow;
 Self Oscillation;
 Simulation;
 Vortices;
 Zonal Flow (Meteorology);
 Fluid Mechanics and Heat Transfer