ON THE INSTABILITY OF FLOW IN A GROOVED CHANNEL etc15 Tracking Number 522Presentation: Session: Wall-bounded flows 3 Room: Room I Session start: 10:30 Wed 26 Aug 2015 A. Mohammadi floryan@uwo.ca Affifliation: University of Western Ontario J.M. Floryan floryan@uwo.ca Affifliation: University of Western Ontario Topics: - Wall bounded flows Abstract: It is shown that flow in a channel with longitudinal grooves is subject to two types of instabilities. The modified classical TS instability represents the first class while an inviscid instability associated with the groove-induced flow modulations represents the second class. The second instability dominates for grooves with the appropriate wave numbers and amplitudes. |