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Integrated numerical model for vegetated surface and saturated subsurface flow interaction

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  • 1. Department of Civil Engineering, Faculty of Engineering, University of Nigde, Nigde 51245, Turkey;
    2. Department of Civil Engineering, College of Engineering, American University of Sharjah, Sharjah 26666, United Arab Emirates

Received date: 2011-07-15

  Revised date: 2012-02-10

  Online published: 2012-07-10

Abstract

The construction of an integrated numerical model is presented in this paper to deal with the interactions between vegetated surface and saturated subsurface flows. A numerical model is built by integrating the previously developed quasi-three-dimensional (Q3D) vegetated surface flow model with a two-dimensional (2D) saturated groundwater flow model. The vegetated surface flow model is constructed by coupling the explicit finite volume solution of 2D shallow water equations (SWEs) with the implicit finite difference solution of Navier-Stokes equations (NSEs) for vertical velocity distribution. The subsurface model is based on the explicit finite volume solution of 2D saturated groundwater flow equations (SGFEs). The ground and vegetated surface water interaction is achieved by introducing source-sink terms into the continuity equations. Two solutions are tightly coupled in a single code. The integrated model is applied to four test cases, and the results are satisfactory.

Cite this article

K. S. ERDURAN . Integrated numerical model for vegetated surface and saturated subsurface flow interaction[J]. Applied Mathematics and Mechanics, 2012 , 33(7) : 881 -898 . DOI: 10.1007/s10483-012-1592-9

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