Numerical Simulation of 2D Flood Fliud on Unstructured Grid

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Abstract:

This paper is concerned with a mathematical model for simulating hydrodynamics of 2D flood flows with the WENO scheme and the Finite Volume Method on unstructured grid. The time discretization uses the Runge-Kutta TVD scheme. By using the proposed model, we calculated the flow property of dam-break, and obtained the flow velocity field distributions. The calculated results show that the WENO scheme has higher accuracy and better stability, and has the ability to automatically capture shock waves, and may suppress the oscillations of numerical solution. This model can effectively simulate the hydrodynamics of 2D river flow with irregular boundaries.

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Periodical:

Advanced Materials Research (Volumes 393-395)

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1295-1299

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November 2011

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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