Some movies of subaqueous barchan dunes

Refrences:
Alvarez, C.A. and Franklin, E.M., Phys. Rev. Lett. 121, 164503 (2018)
Alvarez, C.A. and Franklin, E.M., Phys. Rev. E 96, 062906 (2017)
Slow motion movie showing the development of a barchan dune from an initially conical heap (top view). Glass beads under water. Supplemental Material of Alvarez, C.A. and Franklin, E.M., Phys. Rev. Lett., 121, 164503 (2018)

Accelerated movie showing the formation and migration of a barchan dune (top view). Zirconium beads under a turbulent water flow(left: raw images; right: treated images). Alvarez, C.A. and Franklin, E.M., Phys. Rev. E 96, 062906 (2017)