HR: 0800h
AN: H41A-0130    [Abstracts]
TI: A Numerical Model for Meandering River with Mass Balance
AU: * Huang, J P
EM: vhuang@do.usbr.gov
AF: Hydraulic Engineers, Sedimentation and River Hydraulics Group, Technical Service Center, Bureau of Reclamation, Denver, CO 80111, United States
AU: Greimann, B
AF: Hydraulic Engineers, Sedimentation and River Hydraulics Group, Technical Service Center, Bureau of Reclamation, Denver, CO 80111, United States
AU: Randle, T J
AF: Hydraulic Engineers, Sedimentation and River Hydraulics Group, Technical Service Center, Bureau of Reclamation, Denver, CO 80111, United States
AB: An updated computer model for meandering rivers has been developed using the Linearization Analyses of Johannesson and Parker (1989) and Sun et al. (2001a, b). The model simulates the bed topography, flow field, and bank erosion rate in a curved channel with an erodible bed. Sediment mass balance is preserved to update the channel bed elevation, which is represented by a 2D cell with high elevation area, water surface elevation area, and low elevation area. The model is used to simulate a laboratory channel migration where the upstream channel migration is slowed down due to channel erosion and high bank height.
DE: 1815 Erosion
DE: 1846 Model calibration (3333)
DE: 1847 Modeling
DE: 1849 Numerical approximations and analysis
DE: 1861 Sedimentation (4863)
SC: Hydrology [H]
MN: 2007 Fall Meeting