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Browsing by Subject "HEC-RAS"

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Application of hec-ras 2d model to simulate scour depth around bridge piers-a case study on Kelanisiri bridge, Sri Lanka

Thembiliyagoda, A; De Silva, K; Wijayaratna, N [Conference-Full-text]

Scouring refers to the lowering of the level of river bed due to water erosion. Formation of vortices in the vicinity of bridges due to obstruction caused to river flow by piers and abutments is the core rationale behind ...
Flood hazard and vulnerability assessment in upper Gin river basin in Sri Lanka under climate change

Kumar V [Thesis-Abstract]

Floods are a frequent major disaster throughout the world, usually resulting in fatalities andmassive economic and environmental damage. Seasonal and localized flooding is one of theextremely common natural disasters in ...
River discharge – water level relationship at wide floodplains

Herath, HMJH; Herath, TMN [Conference-Abstract]

The relationship of the river discharge and water level of a river flow can be explained by Manning’s equation. However, in case of a flood situation, when overbank flow occurs, the flow cross-section related to the flow ...
Vulnerability of colombo suburbs for kelani river floods

Geeshan, PGTN; Wijayaratne, TMN [Conference-Abstract]

Floods are globally recognised as a foremost and expensive hazard, cause extensive damage worldwide, affecting lives, property, and crops. Low lying terrain in most of the river basins of Sri Lanka and heavy rainfall in ...
Vulnerability of colombo suburbs for kelani river floods

Geeshan, PGTN; Wijayaratne, TMN; Jayasundara, JMASS [Conference-Full-text]

The lower basin of Kelani River, encompassing the highly populated Colombo metropolitan area, frequently suffers severe inundation due to high river discharges and localized heavy rainfall. This research utilized the ...

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