HR: 17:30h
AN: H24F-07    [Abstracts]
TI: Application of BERM - a bank erosion and retreat model
AU: * CHEN, D
EM: dchen@dri.edu
AF: Desert Research Institute, 755 E. Flamingo RD, Las Vegas, NV 89119, Las Vegas, NV 89119, United States
AB: Bank Erosion and Retreat Model (BERM) distinguishes itself from other models in that the rate of basal erosion is a function of a gradient function of the longitudinal sediment transport rate and strength of the secondary flow rather than being proportional to the excessive near-bank velocity or shear stress. The rate of bank retreat is a resultant of basal erosion and bank collapse. Additionally, bank height, side slope, and thickness of each layer in the vertical structure of the bank are taken into consideration in the model. The feasibility of integrating BERM into a 2D hydrodynamic and sediment transport model has been verified by a few laboratorial cases and a meandering reach in the West Jordan River in Utah, USA. Therefore, BERM could be coupled with most existing hydrodynamic and sediment transport models and extend their ability to account for erodible banks.
DE: 1815 Erosion
DE: 1847 Modeling
DE: 1856 River channels (0483, 0744)
DE: 1862 Sediment transport (4558)
DE: 4534 Hydrodynamic modeling
SC: Hydrology [H]
MN: 2007 Fall Meeting