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Seminar
Speaker
Balachandra Suri (Institute of Science and Technology, Austria)
Date & Time
Thu, 11 March 2021, 16:00 to 17:30
Venue
Online seminar
Resources
Abstract

Laminar fluid flows in regular geometries display certain spatial symmetries (e.g., flow between two concentric counter-rotating cylinders is axisymmetric). When such flows become unstable to small perturbations,   spatially asymmetric'' secondary solutions are (typically) observed in both experiments and numerics.
In this talk, we discuss symmetries and bifurcations of  laminar flows in an electromagnetically driven shallow fluid layer, by computing equilibrium solutions to the governing equation and analyzing their linear stability. We also show (using numerics) that modifying the symmetries of the laminar solution can alter the nature (sub/supercritical) of transition to a (steady/time-periodic) secondary solution.