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15 mins
Turbulent bursts and linear instabilities in rotating channel flow
Geert Brethouwer
Session: Instability and Transition 4
Session starts: Wednesday 26 August, 13:30
Presentation starts: 14:00
Room: Room A

Geert Brethouwer (KTH, Stockholm)

Recurring bursts of turbulence are observed in DNS of rotating channel flow for a range of Reynolds numbers and rotation rates. The bursts are caused by a linear instability and happen in a weakly to strongly turbulent environment. In some cases turbulence or other flow fluctuations can slow down the instability.