IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) FULL PAPERS : THEME 3- SEDIMENT MANAGEMENT AND MORPHODYNAMICS : SCOUR AT BREAKWATERS UNDER COMBINED WAVES AND CURRENT
SCOUR AT BREAKWATERS UNDER COMBINED WAVES AND CURRENT
Author : STEFAN CARSTENSEN , B. MUTLU SUMER
Bed profiles perpendicular to breakwater have been measured for orthogonal combined wave and current scour. The bed profiles show the distinct features of the wave scour forming due to the presence of recirculating cells, namely deposition/scour at the antinodes/nodes depending on whether the sediment transport occurs in the no-suspension or the suspension mode. Also, the current scour which forms by the presence of secondary flow as a result of the corner flow and the change in roughness is noticeable in the bed profiles. The mechanism of scour in both the fundamental cases (waves alone and the current alone) is that the sediment is mobilized by the primary flow while the secondary flow/recirculating cells cause a mean transport of sediment, leading to scour. For the orthogonal combined wave and current the mechanism appears to be similar.
File Size : 680,150 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) FULL PAPERS
Article : THEME 3- SEDIMENT MANAGEMENT AND MORPHODYNAMICS
Date Published : 18/04/2016
Download Now