Turbulent bursts and linear instabilities in rotating channel flow etc15 Tracking Number 338Presentation: Session: Instability and Transition 4 Room: Room A Session start: 13:30 Wed 26 Aug 2015 Geert Brethouwer geert@mech.kth.se Affifliation: KTH, Stockholm Topics: - Instability and transition, - Wall bounded flows Abstract: 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. |