Numerical modelling of river processes: flow and river bed deformation
Tassi, Pablo (2007) Numerical modelling of river processes: flow and river bed deformation. thesis.
|Abstract:||The morphology of alluvial river channels is a consequence of complex interaction among a number of constituent physical processes, such as flow, sediment transport and river bed deformation. This is, an alluvial river channel is formed from its own sediment.
From time to time, alluvial river channels are subject to disturbances in their immediate environment caused by natural or artificial effects, namely variable inflow, sediment supply, and various human activities such as channel regulation or reservoir construction.
Flows are primary driving forces governing the behaviour of alluvial river morphology. An increase in flow magnitude may initiate bed surface movements and bank erosion, once the force exerted by the flood event has passed some threshold for movement or erosion.
The timing and frequency of flood may also have profound effects on a population; a flood can cause catastrophic damage to civil infrastructure located on or nearby the river.
|Link to this item:||http://purl.utwente.nl/publications/57998|
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