A Multiple Grid Algorithm for One-Dimensional Flood Flow

Abstract:

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Numerical modeling of open channel flows with dam-break using explicit finite difference schemes is constrained by the choice of time step, which is limited by the CFL stability criteria. To overcome this limitation, in this work we introduce the application of an algorithm to the field of computational hydraulics. By coupling this algorithm to a second-order accurate MacCormack scheme, we demonstrate that the solution can be accelerated to the desired transient state. The present formulation has been tested to simulate a dam-break flow. The close agreement between the obtained results and the theoretical findings indicates the reliability of the proposed algorithm.

Info:

Periodical:

Advanced Materials Research (Volumes 374-377)

Edited by:

Hui Li, Yan Feng Liu, Ming Guo, Rui Zhang and Jing Du

Pages:

1072-1075

DOI:

10.4028/www.scientific.net/AMR.374-377.1072

Citation:

W. L. Wei et al., "A Multiple Grid Algorithm for One-Dimensional Flood Flow", Advanced Materials Research, Vols. 374-377, pp. 1072-1075, 2012

Online since:

October 2011

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Price:

$35.00

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