Abstract
The generation of large scale zonal flows by flute-like wave modes in nonuniform rotating self-gravitating fluids is considered. In the geostrophic approximation, viz. when the mode frequencies are much smaller than the Coriolis frequency, the coupled mode equations are obtained by using the continuity, momentum and Poisson equations. The equations are then Fourier analyzed to obtain a nonlinear dispersion relation, which exhibits the parametric excitation of zonal flows by the nonlinear force of the flute-like wave modes. Nonlinearly excited zonal flows undergo further cascading and constitute a new turbulent state. They also contribute to the formation of large scale structures in astrophysical fluids.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
