2 papers
physics.flu-dyn2026
Early onset of secondary shear instability in Kelvin-Helmholtz braids at high Reynolds number
Emma R. Bouckley, Sam F. Lewin, Adrien Lefauve
We study the onset of two-dimensional secondary shear instability (SSI) in the braid regions connecting primary Kelvin-Helmholtz billows in stratified shear flows. While strain ind…
physics.flu-dyn2026
Instability and breaking of internal waves in a horizontal shear layer
Samuel F. Lewin, Alexis K. Kaminski, Arun Balakrishna +1
The behaviour of internal waves propagating in a background shear flow is studied in the case where the direction of shear is orthogonal to gravity. Ray-tracing theory is used to p…