Morphology and dynamics of subaqueous dunes generated under unidirectional flow

Iskander Abroug (1) , Pierre Weill (1) , Nizar Abcha (1)

1 M2C - Morphodynamique Continentale et Côtière

The flow velocity over mobile sandy dunes subjected to unidirectional current was investigated using a UB-Lab 2C, an acoustic velocity profiler newly developed by UBERTONE. A space-localized wavelet approach was used in order to detect the temporal evolution of the main dune’s wavelength. The acoustic tool has provided promising results concerning the flow and sediment dynamics over migrating dunes.

Domaines: Sciences de la Terre; Mécanique des fluides [physics.class-ph]

Iskander Abroug, Pierre Weill, Nizar Abcha. Morphology and dynamics of subaqueous dunes generated under unidirectional flow. Marine and River Dune Dynamics – MARID VII, Apr 2023, Rennes, France. ⟨hal-04092681⟩