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Explore the mechanism of stochastic resonance in viscoelastic channel flow through this 31-minute journal club presentation. Discover how stochastic resonance can strongly amplify signals at shifted frequencies in bistable nonlinear systems with weak periodic forcing and noise, specifically examining its occurrence in inertialess viscoelastic channel flow near the onset of elastic instability within the transitional chaotic regime. Learn about the experimental clarification of deterministic stochastic resonance (DSR) and its three key ingredients: chaotic dynamics, flat white noise, and weak elastic waves at various channel locations. Understand how researchers define the DSR existence range using the root-mean-square of streamwise velocity fluctuations along the channel length. Gain insights from presenters Yuke Li from Harbin Engineering University and Victor Steinberg from the Weizmann Institute of Science, with moderation by Georgios Rigas from Imperial College London, as they discuss their findings published in Physical Review Fluids on this complex fluid dynamics phenomenon.
