Abstract

The hydraulic jump is the sudden transition from a high-velocity open channel flow regime to a subcritical flow motion. The flow properties may be solved using continuity and momentum considerations. In this plenary lecture, recent advances in turbulent hydraulic jumps are reviewed: the non-breaking undular hydraulic jump, the positive surge and tidal bore, and the air bubble entrainment in hydraulic jumps with roller. This keynote lecture demonstrates that the hydraulic jump is a fascinating turbulent flow motion that remains poorly understood.

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