Stability via dispersion and mixing in rotating or stratified Couette flow
Event details
| Date | 14.03.2025 |
| Hour | 14:15 |
| Speaker | Dr. Augusto Del Zotto (Univ. of Zürich) |
| Location | |
| Category | Conferences - Seminars |
| Event Language | English |
Abstract: In this talk, we explore the interplay between mixing and dispersion in the linear and nonlinear stability of shear flows in the Navier-Stokes equations, with a focus on the simple case of three-dimensional Couette flow. We present two distinct yet related scenarios - rotating fluids and stably stratified fluids - where both phenomena arise. We highlight key similarities between these settings, particularly how oscillations suppress the lift-up effect instability and how dispersion increases the nonlinear stability threshold.
Practical information
- General public
- Free
Organizer
- Prof. Maria Colombo
Contact
- Dr. Michele Dolce