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12:15
15 mins
ON THE INSTABILITY OF FLOW IN A GROOVED CHANNEL
A. Mohammadi, J.M. Floryan
Session: Wall-bounded flows 3
Session starts: Wednesday 26 August, 10:30
Presentation starts: 12:15
Room: Room I
A. Mohammadi (University of Western Ontario)
J.M. Floryan (University of Western Ontario)
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.