The effects induced by a new embankment at the confluence between two rivers : TELEMAC results compared with a physical model

摘要: With the aim of evaluating hydraulic risks connected with construction a new embankment at confluence Magra River and Bagnone Torrent, an experimental analysis was conducted using undistorted 1 : 55 scale physical model. A parallel study software TELEMAC-2D applied to same domain as model boundary conditions also carried out. The use numerical enabled comparison results obtained from test reliability itself in terms accuracy, stability instability. In order estimate effects induced by embankment, two sets experiments were out; first set bed bank topography before modelled, second actual situation considered. Comparison data simulations measurements showed good agreement qualitative point view, However, some differences noticed local values, particularly morphology evolution where estimation level variations are strongly dependent on sediment transport dynamics.