Bursting of Laminar Separation Bubbles by O N Ramesh
Explore the intricacies of laminar separation bubbles and their bursting mechanisms in this 30-minute conference talk by O N Ramesh at the International Centre for Theoretical Sciences. Delve into the connection between micro air vehicles (MAVs) and drones, examining schematic representations and pressure distributions of laminar separation bubbles. Investigate key parameters for predicting bursting, including Gaster's parameter and PDCR evaluations. Analyze the causes of bursting through convective and absolute instability in free shear layers, and observe the transition between short and long bubbles. Gain insights from PIV movies and examine the relationship between absolute/convective instability and frequency content. Conclude with a discussion on Reynolds shear stress and a comprehensive summary of the presented concepts.