Mingtao Jiang, Baoxin Jiang, Adrian Wing-Keung Law
Wednesday 1 july 2015
11:15 - 11:30h at Antarctica (level 0)
Themes: (T) Special session, (ST) Marine outfall system
Parallel session: 9D. Special Session: Marine Outfall System
The mixing behavior of 45º inclined dense jets in co-flowing currents was examined experimentally by employing the advanced laser imaging technique of Planar Laser Induced Fluorescence (PLIF) at the jet centre plane. The experiment covered a wide range of jet densimetric Froude number (Fr) and jet to ambient velocity ratio (r). The results indicated that the mixing behavior is strongly dependent on the nominal Froude number (or ambient Froude number) . For NFr<1.0, the mixing is jet dominated, and the trajectory is mainly affected by the initial jet momentum while the dimensionless centerline peak height Zm/FrD is almost independent of the nominal Froude number. For NFr_1.0, the mixing behavior is strongly affected by the co-flowing currents, and the dimensionless centerline peak height Zm/FrD is a function of NFr.