Selected Research Videos

Vortex shedding behind a bottom-mounted vertical circular cylinder under steady current, and waves.

Publication: Baykal, C., Sumer, B.M., Fuhrman, D.R., Jacobsen, N.G. and Fredsøe, J.: “Numerical simulation of scour and backfilling processes around a circular pile in waves”, Coastal Engineering, 122, 87-107, 2017.

Backfilling of a current-generated scour hole by waves (with Keulegan-Carpenter number being 20).

Publication: Baykal, C., Sumer, B.M., Fuhrman, D.R., Jacobsen, N.G. and Fredsøe, J.: “Numerical simulation of scour and backfilling processes around a circular pile in waves”, Coastal Engineering, 122, 87-107, 2017.

Liquefaction of seabed under a standing wave.

Publication: Kirca, V.S.O., Sumer, B.M. and Fredsøe, J.: “Residual liquefaction of seabed under standing waves”, Journal of Waterway, Port, Coastal, and Ocean Engineering, ASCE, vol. 139 , No. 6 , pp. 489-501, 2013

Floatation of a pipeline buried in liquefied seabed.

Publication: Sumer, B.M., Hatipoglu, F., Fredsøe, J. and Hansen, N.-E. O.: “Critical floatation density of pipelines in soils liquefied by waves and density of liquefied soils”. Journal of Waterway, Port, Coastal and Ocean Engineering, ASCE, vol. 132, No. 4, pp. 252-265, 2006. Video shot by Ozgur Kirca in 2010. Similar videos on CD-ROM accompanying Sumer’s book Liquefaction Around Marine Structures

Effect of turbulence on scour.

Publication: Dixen, M., Sumer, B.M. and Fredsøe, J.: “Numerical and experimental investigation of flow and scour around a half-buried sphere. Coastal Engineering, Vol. 73, pp. 84-105, 2013

Vortex tubes in solitary wave boundary layers.

Publication: Sumer, B.M., Jensen, P.M., Sørensen, L.B., Fredsøe, J., Liu, P.L.-F. and Carstensen, S.: “Coherent structures in wave boundary layers. Part 2. Solitary motion”. Journal of Fluid Mechanics, Volume 646, pp. 207-231, 2010

Turbulent spots in solitary wave boundary layers — transition to turbulence.

Publication: Sumer, B.M., Jensen, P.M., Sørensen, L.B., Fredsøe, J., Liu, P.L.-F. and Carstensen, S.: “Coherent structures in wave boundary layers. Part 2. Solitary motion”. Journal of Fluid Mechanics, Volume 646, pp. 207-231, 2010

Scour around a vertical pile in current.

Publication: Roulund, A., Sumer, B.M., Fredsøe J. and Michelsen, J.: “Numerical and experimental investigation of flow and scour around a circular pile”. J. Fluid Mechanics, vol. 534, pp. 351-401, 2005