Solution of Diffusive Wave Equation Using FEM for Flood Forecasting

Autor: Ali Asghar Mahesar, Ahsanullah Baloch, Abdul Latif Qureshi
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Zdroj: Mehran University Research Journal of Engineering and Technology, Vol 33, Iss 3, Pp 309-314 (2014)
Druh dokumentu: article
ISSN: 0254-7821
2413-7219
Popis: Flood forecasting can be predicted numerically by the solution of 1D (One-Dimensional) unsteady diffusive wave equation. This research paper presents the development of a fem (Finite Element Model) for flood routing using diffusive wave with and without lateral inflow/outflow. FEM is based on two-step semi?implicit Taylor?Galerkin technique. The accuracy of the model has been verified by comparing computed results with available solution of the diffusive wave problems available in open literature. Numerical results demonstrate that the technique is an efficient and accurate tool to simulate diffusive wave equation for outflow hydrograph for temporal variation of lateral inflow and outflow
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