Abstract

The phenomenon of Shear Induced wave Transformations (SITs) (Chagelishvili et al. 1996), is a common feature of flows, sustaining n> 1 mode of wave motion. Until now this \nonmodal phenomenon was described only in terms of the time evolution of individual Fourier harmonics of perturbations in the space of wave numbers (k-space). In this paper we present the results of the rst, direct numerical simulations of SITs, giving compelling evidence in favor of the robust and recognizable character of SITs. The importance of these results for an under- standing of physical processes in astrophysical shear flows is pointed out. Namely, concrete astrophysical situations (solar plasma flows, galactic gaseous disks, accretion disks and accretion-ejection flows), where this approach may help to shed some light on observational appearances of related objects, are indicated and discussed.

Full Text
Paper version not known

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 call

Disclaimer: 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.