Supercritical Flows: The Sedimentology of the Upper Flow-Regime

Explore the fascinating world of supercritical flows and their sedimentological aspects in this comprehensive 1-hour 11-minute lecture. Delve into the classical grouping of bedforms into lower and upper regimes, understanding the transition from subcritical to supercritical flow as the Froude number passes a critical value. Discover the recent revival of academic interest in supercritical flows, with a focus on the newest addition to the supercritical palette: cyclic steps. Learn about the alternating pattern of subcritical and supercritical flow and its relation to the Vedernikov number. Examine the crucial role of waves at the upper flow boundary in understanding transitions between stable subcritical, stable supercritical, and unstable supercritical regimes. Review current knowledge on sedimentological aspects of supercritical flows and explore unanswered questions in this field.