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Simulation of open channel network flows using finite element approach

✍ Scribed by Yi Zhang

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
322 KB
Volume
10
Category
Article
ISSN
1007-5704

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✦ Synopsis

This paper presents a finite element method (FEM) for simulating open channel network flows. Using a recursive formula derived from element equations, a relationship for channel junctions is established and a system equation is obtained. The system equation is much smaller in size in comparison with the simultaneous solution approach and its solution provides boundary conditions for single channels. The FEM is applied to solve individual channels, and a double sweep method is employed to save computation time. To demonstrate the potential of the approach, two channel networks were computed. It is shown that the results obtained with the proposed FEM are very close to those given by the widely used Preissmann scheme, indicating that it is an effective method to model flows in open channels.

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