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Las ecuaciones de Saint Venant para la modelización de avalanchas de nieve densa

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Las ecuaciones de Saint Venant para la modelización de avalanchas de nieve densa

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dc.contributor.author Sanz-Ramos, M. es_ES
dc.contributor.author Bladé, E. es_ES
dc.contributor.author Torralba, A. es_ES
dc.contributor.author Oller, P. es_ES
dc.date.accessioned 2020-03-02T06:56:18Z
dc.date.available 2020-03-02T06:56:18Z
dc.date.issued 2020-01-31
dc.identifier.issn 1134-2196
dc.identifier.uri http://hdl.handle.net/10251/138055
dc.description.abstract [ES] La creciente preocupación por los riesgos naturales, como las avalanchas de nieve, ha propiciado el desarrollo de modelos numéricos ad hoc como una herramienta de soporte para su análisis y evaluación. Los modelos existentes para simulación de aludes se basan en la conservación de la masa y de la cantidad de movimiento, que son unas ecuaciones similares a las ecuaciones de Saint Venant para agua con diferencias sólo en los términos de fricción (modelo reológico). Este documento muestra las posibilidades de estas ecuaciones para simular avalanchas de placa-densa y el tratamiento numérico realizado en Iber. Se ha empleado una nueva metodología para equilibrar el término fuente y el vector de flujo evitando así oscilaciones espurias y movimientos no reales, y que modifica la pendiente de fondo en base a los parámetros del fluido y así detener su movimiento. La herramienta se ha probado en dos casos de estudio para analizar el comportamiento del fluido en función de los parámetros del mode es_ES
dc.description.abstract [EN] The growing concern about natural hazards, such as snow avalanches, has led to the development of ad hoc numerical models as a support tool for their analysis and evaluation. Existing models for avalanche simulation are based on the conservation of mass and the momentum, which are similar equations to the Saint Venant equations for water with differences only in terms of friction (rheological model). This document shows the possibilities of these equations to simulate dense-slab avalanches and the numerical treatment carried out in Iber. A new methodology has been used to balance the source term and the flow vector to avoid spurious oscillations and unreal movements, modifying the bottom slope based on the fluid parameters and thus stop its movement. The tool has been tested in two case studies to analyse the behaviour of the fluid depending on the parameters of the rheological model. es_ES
dc.language Español es_ES
dc.publisher Universitat Politècnica de València es_ES
dc.relation.ispartof Ingeniería del agua es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Numerical modelling es_ES
dc.subject 2D-SWE es_ES
dc.subject Non-Newtonian flows es_ES
dc.subject Snow avalanches es_ES
dc.subject Modelización numérica es_ES
dc.subject Fluidos no-Newtonianos es_ES
dc.subject Avalanchas de nieve es_ES
dc.title Las ecuaciones de Saint Venant para la modelización de avalanchas de nieve densa es_ES
dc.title.alternative Saint Venant’s equations for dense-snow avalanche modelling es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.4995/ia.2020.12302
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Sanz-Ramos, M.; Bladé, E.; Torralba, A.; Oller, P. (2020). Las ecuaciones de Saint Venant para la modelización de avalanchas de nieve densa. Ingeniería del agua. 24(1):65-79. https://doi.org/10.4995/ia.2020.12302 es_ES
dc.description.accrualMethod OJS es_ES
dc.relation.publisherversion https://doi.org/10.4995/ia.2020.12302 es_ES
dc.description.upvformatpinicio 65 es_ES
dc.description.upvformatpfin 79 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 24 es_ES
dc.description.issue 1 es_ES
dc.identifier.eissn 1886-4996
dc.relation.pasarela OJS\12302 es_ES
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