Análisis de Condiciones de Contorno y Cambio de Regimen en Modelos Hidrodinámicos con Fondo Móvil

Abstract

The hydrodynamic flow on rectangular channela with a mobile bed is governed, for amall solid dischargea, by a quasi-linear hyperbolic system. Two of the real eicenvalues of the matrix of the systems are always strictly positive, and tbe other is always strictly necative, so that two boundary conditions are always necessary at the upatreaa
extreme point, and one at tbe downstream extreme point, and the matrix of the system does not become siocular at a transition of regimen. The flow is numerically modeled by an implicit finite-difference method, the transition of regime is analysed, and different combinations of boundary conditiona are studied.