文章基本信息

标题：Solución del Flujo en Canales y del Flujo de Agua Subterránea Usando un Modelo Acoplado en Elementos Finitos
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作者：Leticia B. Vionnet ; Carlos A. Vionnet
期刊名称：Mecánica Computacional
印刷版ISSN：2591-3522
出版年度：1996
卷号：16
期号：5
页码：295-304
语种：Spanish
出版社：CIMEC-INTEC-CONICET-UNL
其他摘要：In this work a finite element model that couples open channel flow and ground-water flow is presented. The mathematical formulation of the groundwater flow is based on the theory of flow through porous media while the open channel flow is simulated by means of the kinema.tic wave approximation. It is shown that the coupling term arises naturally from the weak formulation of the governing equations making it necessary to introduce a branch cut in the computational domain, contrary to its standard treatment as a source term. The solution of the ground-water flow equation is accomplished with the Bubnov- Galerkin method, with triangular elements and a linear approximation of the hydraulic head. The kinematic wave equation is solved using a Petrov-Galerkin formulation instead. The model is finaly applied to a real problem with highly satisfactory results.