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physics.flu-dyn2020★ 1 cited
Self-sustained large-scale motions in the asymptotic suction boundary layer
Sajjad Azimi, Carlo Cossu, Tobias M. Schneider
Large-scale motions, also known as superstructures, are dynamically relevant coherent structures in a wall-bounded turbulent flow, that span the entire domain in wall-normal direct…
physics.flu-dyn2020
Modified snaking in plane Couette flow with wall-normal suction
Sajjad Azimi, Tobias M. Schneider
A specific family of spanwise-localised invariant solutions of plane Couette flow exhibits homoclinic snaking, a process by which spatially localised invariant solutions of a nonli…
physics.flu-dyn2019
Self-similar invariant solution in the near-wall region of a turbulent boundary layer at asymptotically high Reynolds numbers
Sajjad Azimi, Tobias M. Schneider
At sufficiently high Reynolds numbers, shear-flow turbulence close to a wall acquires universal properties. When length and velocity are rescaled by appropriate characteristic scal…