Browsing by Author "Núñez González, Francisco"Més informacióMés informació

Now showing items 1-8 of 8

    • A large bridge pier in an alluvial channel: local scour versus morphological effects and the role of physical models 

      Martín Vide, Juan Pedro; Fael, Cristina M. S.; Núñez González, Francisco; Ferrer Boix, Carles; Santos, César A. V.; Prats Puntí, Arnau; Chavarrías Borrás, Víctor (American Society of Civil Engineers, 2022-08)
      Article
      Restricted access - publisher's policy
      The large pier of an emblematic bridge built in 2008 in the Ebro River (Zaragoza, Spain) obstructs the flow in high floods. Clear-water scour experiments in a scale model were conducted to anticipate maximum local scour ...

    • Bedload transport of sand-gravel mixtures with antidunes: flume experiments 

      Núñez González, Francisco (Universitat Politècnica de Catalunya, 2012-07-20)
      Doctoral thesis
      Open Access
      In this thesis, the interaction between flow and sediment in alluvial channels is studied from an empirical approach, for conditions close or pertaining to supercritical flow, and for four types of sediment: sand, gravel ...

    • Experimentos de equilibrio de lechos fluviales de arena y grava 

      Martín Vide, Juan Pedro; Núñez González, Francisco (2019-03)
      Article
      Open Access
      Se describe una instalación de laboratorio que permite realizar ensayos en canal con alimentación separada de arena y grava, como es caracterísitico de los lechos de muchos ríos. Se hacen ensayos de gran duración, en que ...

    • La audacia del Pabellón Puente en el río Ebro (Expo 2008): consecuencia en erosión fluvial y exigencias de protección y auscultación 

      Martín Vide, Juan Pedro; Fael, Cristina M. S.; Núñez González, Francisco; Ferrer Boix, Carles; Gutiérrez Carrera, Fernando; Goyeneche Vázquez de Seyas, Francisco-Javier (2009-01)
      Article
      Open Access
      El artículo trata del riesgo de erosión fluvial en una pila compleja de gran anchura, construida en el cauce del río Ebro en Zaragoza. Se describe el problema de erosión local en la pila, las características del modelo ...

    • Large wood debris that clogged bridges followed by a sudden release: the 2019 flash flood in Catalonia 

      Martín Vide, Juan Pedro; Bateman Pinzón, Allen; Berenguer Ferrer, Marc; Ferrer Boix, Carles; Amengual Pou, Arnau; Campillo Betbese, Manel; Corral Alexandri, Carles; Llasat Botija, Maria Carmen; Llasat Botija, Montserrat; Gómez Dueñas, Santiago; Marin-Esteve, Blanca; Núñez González, Francisco; Prats Puntí, Arnau; Ruiz Carulla, Roger; Sosa Pérez, Raul (Elsevier, 2023-06)
      Article
      Open Access
      The aim is the reconstruction of the October 2019 flash flood, that was documented through extensive field work: rainfall (300 mm in just a few hours), flood marks, times of flood passage and witnesses' snapshots and ...

    • Massive incision and outcropping of bedrock in a former braided river attributed to mining and training 

      Ferrer Boix, Carles; Scorpio, Vittoria; Martín Vide, Juan Pedro; Núñez González, Francisco; Mora Mur, Daniel (2023-09)
      Article
      Restricted access - publisher's policy
      This research analyses multiple anthropogenic pressures in the Bernesga River, a gravel-bed river in Northwestern Iberian Peninsula. Among the causes of river incision in Bernesga River are extensive mining during the ...

    • Particle-resolved simulation of antidunes in free-surface flows 

      Schwarzmeier, Christoph; Rettinger, Christoph; Kemmler, Samuel; Plewinski, Jonas; Núñez González, Francisco; Köstler, Harald; Rüde, Ulrich; Vowinckel, Bernhard (Cambridge University Press, 2023-04)
      Article
      Open Access
      The interaction of supercritical turbulent flows with granular sediment beds is challenging to study both experimentally and numerically. This challenging task has hampered advances in understanding antidunes, the most ...

    • Porosity and size gradation of saturated gravel with percolated fines 

      Núñez González, Francisco; Martín Vide, Juan Pedro; Kleinhans Maarten, G. (2016-08)
      Article
      Open Access
      Fine particles may infiltrate through coarse alluvial beds and eventually saturate the subsurface pore space. It is essential to understand the conditions that lead to bed saturation, and to forecast the packing characteristics ...