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Yes +
A two-dimensional numerical model was deve … A two-dimensional numerical model was developed for simulating free surface flow. The model is based on the solutions of two-dimensional depth averaged Navier-Stokes equations. A finite volume method is applied such that mass conservation is satisfied both locally and globally. The model adopted the two-step, high resolution MUSCL-Hancock scheme. This Godunov type scheme is used together with the approximate Riemann solver. The boundary cells are treated as cut-cells in order to accommodate arbitrarily geometries of natural rivers. There are sixteen types of cut-cells depending on the slope of the boundary intersection with the cell. A cell merging technique is incorporated in the model that combines small cells with neighboring cells to create a larger cell, helps keeping the CFL condition. The cut-cells approach permits a fully boundary-fitted mesh without implementing a complex mesh generation procedure for irregular geometries. The model is verified by several laboratory experiments including unsteady flow passing through cylindrical piers and dam break flow in a rectangular channel. The model is also applied to simulate a 100-year flood event occurred at the Huron Island reach of the Mississippi River, where flow paths in the island formed a complex channel network as flood propagates.mplex channel network as flood propagates. +
Depth-Averaged Two Dimensional Model Using Cartesian Cut-Cell Approach +
Tucson +
United States +
Univ. of Arizona +
gduan@email.arizona.edu +
Sedflux +
Jennifer +
Univ. of Arizona +
Duan +
520-626-5946 +
Image: +
Image: +
Delft3D +
Arizona +
TauDEM +
October 27, 2011 +
October 30, 2011 +
United States +
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23:49:05, 28 August 2011 +
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21:10:30, 10 June 2017 +
No +
