Dynamics of separated flow structure behind the semicylindrical rib in the channel at Re=798
Journal: Visualization of Mechanical Processes: An International Online Journal
Article: VORTICAL STRUCTURE DYNAMICS OF SEPARATED CHANNEL FLOW BEHIND A SEMICYLINDRICAL RIB AT LATE STAGES OF LAMINAR-TURBULENT TRANSITION
Topics: Transition, Turbulence, Turbulence models, Visualization techniques
These videos show visualization of the flow structure evolution behind the semicylindrical rib in the channel at different stages of transition to turbulence. It is shown that starting from a certain Reynolds number, large-scale vortices are generated in the mixing layer behind the smoothly shaped rib. The main stages of the shear layer stability loss and vortex generation are observed.