Archivio Istituzionale della RicercaTwo numerical codes, with fundamental differences in their approaches, are used for modeling the Yu Tung debris flow, which occurred in Hong Kong in 2008. The first code, RASH3D, is based depthaveraged St. Venant equations, solved in an Eulerian framework. The second code, HYBIRD, is fully 3D and based on Lattice-Boltzmann Model (LBM), i.e. the conservation equations are not depth-averaged and therefore multiple velocity measures are available over the depth. The two model output are compared and discussed.
From depth-averaging to fully three-dimensional modelling of debris-flow dynamics / Pirulli, M.; Leonardi, A.; Manassero, M.; Scavia, C.. - ELETTRONICO. - (2019), pp. 1-7. (Intervento presentato al convegno 17th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2019 tenutosi a Reykjavik, Iceland nel 1-6 Septermber 2019) [10.32075/17ECSMGE-2019-1084].
From depth-averaging to fully three-dimensional modelling of debris-flow dynamics
M. Pirulli;M. Manassero;C. Scavia
2019
Abstract
Two numerical codes, with fundamental differences in their approaches, are used for modeling the Yu Tung debris flow, which occurred in Hong Kong in 2008. The first code, RASH3D, is based depthaveraged St. Venant equations, solved in an Eulerian framework. The second code, HYBIRD, is fully 3D and based on Lattice-Boltzmann Model (LBM), i.e. the conservation equations are not depth-averaged and therefore multiple velocity measures are available over the depth. The two model output are compared and discussed.
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https://hdl.handle.net/11583/2972084