Current knowledge in hydraulic jumps and related phenomena. A survey of experimental results
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 review paper, recent advances in turbulent hydraulic jumps are developed: the non-breaking undular hydraulic jump, the positive surge and tidal bore, and the air bubble entrainment in hydraulic jumps with roller. The review paper demonstrates that the hydraulic jump is a fascinating turbulent flow motion and the present knowledge is insufficient, especially at the scales of environmental and geophysical flows.
- Publication:
-
European Journal of Mechanics, B/Fluids
- Pub Date:
- 2009
- DOI:
- 10.1016/j.euromechflu.2008.06.004
- Bibcode:
- 2009EuJMB..28..191C
- Keywords:
-
- Hydraulic jumps;
- Undular hydraulic jumps;
- Positive surges;
- Tidal bores;
- Unsteady turbulence;
- Air bubble entrainment;
- Boussinesq equation;
- Two-phase flow properties;
- Dynamic similarity;
- Scale effects