Author(s): Ricardo Gutierrez Lopez; Alejandro Mendoza Resendiz; Moises Berezowsky Verduzco; Maritza Arganis

Linked Author(s):

Keywords: Riparian vegetation; River morphology; Numerical model; TELEMAC

Abstract: Important efforts have been made to model the effects of vegetation on river morphodynamics, but most of them are focused on modeling the vegetation as static elements parameterized by equivalent bed roughness or implicit form. Those approaches do not take into account the variation in time of the life cycle of vegetation, and how it alters the sediment transport due to modification of flow characteristics. In order to solve this limitation, a model for vegetation effects is outlined here. The model combines TELEMAC2D and SYSIPHE of the open suite TELEMAC-MASCARET with the vegetation development modules of the DRIPVEM model; additionally, two models are considered to estimate the non-rigid drag coefficient for tree and the bulk drag coefficient for herb. The model can simulate the variations in herb biomass during flood events and alterations of the velocity field which, in turn, induces changes in the sediment deposition

DOI: https://doi.org/10.64697/978-90-835589-7-4_41WC-P1956-cd

Year: 2025