Study on Sediment Transport around a Vegetation-covered Alternating Bars

Autor: Miwako Komatsu, Kouichi Motegi, Yoshihiko Shimizu, Shigeki Kobatake
Rok vydání: 1997
Předmět:
Zdroj: PROCEEDINGS OF HYDRAULIC ENGINEERING. 41:837-844
ISSN: 1884-9172
0916-7374
DOI: 10.2208/prohe.41.837
Popis: In rivers, alternating bars are often covered with vegetation and provide favorable spaces for natural habitat environment. Then one has to know more about the flow and sediment transport around vegetation-covered bars, which bring about river-morphological change during floods. In present study, river bed deformation around vegetation-covered alternating bars is discussed by flume experiments and numerical calculations with k-e turbulence model. The results show that vegetation over alternating bars changes the formation of main channel and has possibility to control the spatial variation of river bed.
Databáze: OpenAIRE