Evolución de la modelización numérica bidimensional del flujo en lámina libre a través del software Iber

Ingeniería del agua, Journal Year: 2025, Volume and Issue: 29(2), P. 114 - 131

Published: April 30, 2025

Iber es una herramienta de simulación hidráulica bidimensional surgida desde la academia para dar solución a problemas ingeniería y ambiental. Desde su nacimiento en 2010 se ha convertido un software ampliamente aceptado simular procesos hidrodinámicos flujo lámina libre. Este trabajo presenta evolución analiza las mejoras llevadas cabo que actualmente permiten realizar simulaciones, completamente acopladas con hidrodinámica, transporte sedimentos calidad aguas, hidrológicos nivel cuenca rural urbana, eco-hidráulica, etc. Los módulos capacidades cálculo implementados, así como líneas futuras, demuestran modelización hidrodinámica todavía tiene gran margen el desarrollo nuevas aplicaciones mejoras. sigue unas enfoque eminentemente práctico, permitiendo usuarios usuarias simulaciones cada vez más fidedignas al proceso físico representar.

---

The role of vegetation and large wood on the topographic characteristics of braided river systems

Geomorphology, Journal Year: 2020, Volume and Issue: 367, P. 107299 - 107299

Published: June 15, 2020

Language: Английский

---

Open check dams and large wood: head losses and release conditions

Natural hazards and earth system sciences, Journal Year: 2020, Volume and Issue: 20(12), P. 3293 - 3314

Published: Dec. 4, 2020

Abstract. Open check dams are strategic structures to control sediment and large-wood transport during extreme flood events in steep streams piedmont rivers. Large wood (LW) tends accumulate at such structures, obstruct their openings increase energy head losses, thus increasing flow levels. The extent variability which the stage–discharge relationship of a dam is modified by LW presence has so far not been clear. In addition, sufficiently high flows may trigger sudden release trapped with eventual dramatic consequences downstream. This paper provides experimental quantification LW-related loss simple ways compute related water depth various shapes: trapezoidal, slit, slot sabo (i.e. made piles), consideration capacity through open bodies atop spillways. it was observed that often released over structure when overflowing depth, i.e. total minus spillway elevation, about 3–5 times mean log diameter. Two regimes accumulations were observed. Dams low permeability generate velocity upstream, then accumulates as floating carpets, single layer. Conversely, maintain velocities immediately upstream dense complex 3D patterns. because drag forces stronger than buoyancy, allowing logs be sucked below surface. cases, releases occur for higher losses higher. A new dimensionless number, namely buoyancy-to-drag-force ratio, can used whether (or not) stay floating-carpet domain where buoyancy prevails force.

Language: Английский

---

A New Framework to Model Hydraulic Bank Erosion Considering the Effects of Roots

Water, Journal Year: 2020, Volume and Issue: 12(3), P. 893 - 893

Published: March 22, 2020

Floods and subsequent bank erosion are recurring hazards that pose threats to people can cause damage buildings infrastructure. While numerous approaches exist on modeling erosion, very few consider the stabilizing effects of vegetation (i.e., roots) for hydraulic at catchment scale. Taking root reinforcement into account enables assessment efficiency decrease rates thus improve risk management strategies along forested channels. A new framework (BankforNET) was developed model considers mechanical roots randomness in Shields entrainment parameter calculate probabilistic scenario-based events. The one-dimensional, uses empirical excess shear stress equation where erodibility parameters randomly updated from an distribution based data found literature. implemented by considering area ratio (RAR) affecting material dependent critical stress. validated Selwyn/Waikirikiri River New Zealand, Thur Sulzigraben catchment, both Switzerland. Modeled deviates observed between 7% 19%. sensitivity analysis vertically stable river reaches also suggests reduce up 100% channels with widths < 15.00 m, longitudinal slopes 0.05 m m−1 a RAR 1% 2%. results show be significantly decreased presence under certain conditions its contribution quantified different channel geometry, forest structure discharge scenarios.

Language: Английский

---

Patterns of organic matter accumulation in dryland river corridors of the southwestern United States

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 833, P. 155136 - 155136

Published: April 9, 2022

Language: Английский

---