A radically new approach to predict flow patterns in shallow reservoirs! [Open Access]

Shallow reservoirs are often used in hydraulic engineering as sediment traps or storage basins. Previous studies revealed the existence of different flow patterns in such reservoirs, depending on the shape of the reservoir (jet flowing straight from the inlet to the outlet, or jet reattachment to the sidewall of the reservoir). Here, we demonstrate that this switch in flow pattern coincides with a maximization of energy dissipation in the shear layer between the main jet and the recirculation zones.

The strength of this approach lies in the fact that no detailed knowledge of small scale processes is needed, while large scale structure formation can still be predicted!

The study was just released in the Journal of Hydraulic Research: