Modelling of sediment transport and bed deformation in rivers.
|dc.identifier.citation||Jing H, Li C, Guo Y, Zhang L, Zhu L & Li Y (2013) Modelling of sediment transport and bed deformation in rivers. Journal of Hydrology, 499: 224-235.||en_US|
|dc.description.abstract||A two dimensional (2D) RNG k-ε sediment model including the effects of secondary currents is developed to simulate sediment transport and bed deformation in rivers with continuous bends. Nonuniform suspended and bedload sediment transports and variation of effective bed material size distribution are included in the model. A semi-coupled scheme for sediment model is proposed, which can be used for simulating both the long- and short-term sediment transport whenever riverbed changes. The model is applied to simulate the flow and sediment transport in the Shapotou reservoir in the upper reach of the Yellow River which is a typical natural river reach with continuous bends. River bed deformations caused by suspended and bedload sediment transport are investigated. Good agreement between the numerically simulated results and the field measurements is obtained, indicating that the model is capable of simulating the sediment transport and predicting the bed deformation of rivers having continuous bends with reasonable accuracy.||en_US|
|dc.description.sponsorship||the Major Research Plan Project, National Natural Science Foundation of China(Grant No.: 91230111 and 51279071); National Key BasicResearch Development Program of China (973 Program, Grant No.: 2010CB429002);Project of Science and Technology of Colleges in Ningxia, China (Grant No.:NGY2012097)||en_US|
|dc.rights||© 2013 Elsevier. Reproduced in accordance with the publisher's self-archiving policy.||en_US|
|dc.subject||RNG k–e turbulence model, Bed deformation; Suspended sediment; Bedload sediment; Bed material granularity||en_US|
|dc.title||Modelling of sediment transport and bed deformation in rivers.||en_US|