Mixing layer under a free surface
Abstract
In the long-wave approximation, the flow of a homogeneous fluid with a free surface in the gravity field is considered. Mathematical models of the surface turbulent layer in shear flows are derived. Steady solutions of the problem of evolution of the mixing layer under the free surface and formation of a surface turbulent jet are constructed. In particular, the problem of the structure of a turbulent bore in a supercritical flow is solved, and the conditions for the formation of a local subcritical zone ahead of the obstacle are studied.
- Publication:
-
Journal of Applied Mechanics and Technical Physics
- Pub Date:
- March 2014
- DOI:
- 10.1134/S0021894414020126
- Bibcode:
- 2014JAMTP..55..299L
- Keywords:
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- shallow water equations;
- mixing layer;
- turbulent bore;
- breakdown of waves