Capítulo de Libro
Modelling of bedload sediment transport for weak and strong regimes
Autor/es | Escalante Sánchez, Cipriano
Fernández Nieto, Enrique Domingo ![]() ![]() ![]() ![]() ![]() ![]() ![]() Morales de Luna, Tomás Narbona Reina, Gladys ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Coordinador/Director | Greiner, David
Montenegro Armas, Rafael Asensio Sevilla, María Isabel |
Departamento | Universidad de Sevilla. Departamento de Matemática Aplicada I (ETSII) |
Fecha de publicación | 2021 |
Fecha de depósito | 2023-09-28 |
Publicado en |
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ISBN/ISSN | 9783030625429 9783030625436 |
Resumen | A two-layer shallow water type model is proposed to describe bedload sediment transport for strong and weak interactions between the fluid and the sediment. The key point falls into the definition of the friction law between ... A two-layer shallow water type model is proposed to describe bedload sediment transport for strong and weak interactions between the fluid and the sediment. The key point falls into the definition of the friction law between the two layers, which is a generalization of those introduced in Fernández-Nieto et al. (https://doi.org/10.1051/m2an/2016018). Moreover, we prove formally that the two-layer model converges to a Saint-Venant-Exner system (SVE) including gravitational effects when the ratio between the hydrodynamic and morphodynamic time scales is small. The SVE with gravitational effects is a degenerated nonlinear parabolic system, whose numerical approximation can be very expensive from a computational point of view, see for example T. Morales de Luna et al. (https://doi.org/10.1007/s10915-010-9447-1). In this work, gravitational effects are introduced into the two-layer system without any parabolic term, so the proposed model may be a advantageous solution to solve bedload sediment transport problems. |
Agencias financiadoras | Gobierno de España European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) |
Identificador del proyecto | MTM 2015-70490-C2-1-R
![]() MTM 2015-70490-C2-2-R ![]() |
Cita | Escalante Sánchez, C., Fernández Nieto, E.D.,...,Narbona Reina, G. (2021). Modelling of bedload sediment transport for weak and strong regimes. En D. Greiner, R. Montenegro Armas, M.I. Asensio Sevilla (Ed.), Numerical simulation in Physics and Engineering: trends and applications. Lecture Notes of the XVIII ‘Jacques-Louis Lions’ Spanish-French School (pp. 179-189). Cham (Switzerland): Springer. |
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