Streamlining river groynes: Laboratory experimentsin schematised geometry under submerged flow conditions

Groynes are hydraulic structures commonly applied in the Dutch rivers. Depending on the water depth, groynes can be emerged or submerged. When a groyne is emerged, it has two main functions: maintaining the water depth in the main channel and preventing the river from eroding its bank. When the discharge in the river increases, the groynes...

Preliminary design of a flood abatement control zone (ZAC) in the region of Murcia, Spain

The coastal area of the Murcia region in Spain experiences more frequent and more intense flash floods caused by inland heavy rainfall due to climate change. This results in high water levels in towns and cities, leading to risk of loss of life and many financial damages. Currently the region is vulnerable, because there are no hydraulic...

Sediment morphology and the flow velocity field in a gully pot: An experimental study

Urban runoff (re)mobilises solids present on the street surface and transport them to urban drainage systems. The solids reduce the hydraulic capacity of the drainage system due to sedimentation and on the quality of receiving water bodies due to discharges via outfalls and combined sewer overflows (CSOs) of solids and associated pollutants....

The influence of biofilm development on the effective gas permeability in hydraulic fractures

Shale gas is natural gas captured in low permeable shale formations, to be able to produce this gas the permeability of the reservoir needs to be enhanced. Hydraulic fracturing is used in low permeable reservoirs to increase the permeability and make gas production possible. Fracking fluid is pumped in the reservoir at high pressure to create...