Print Email Facebook Twitter Lagrangian data assimilation for river hydraulics simulations Part of: ECCOMAS CFD 2006: Proceedings of the European Conference on Computational Fluid Dynamics· list the conference papers Title Lagrangian data assimilation for river hydraulics simulations Author Honnorat, M. Monnier, J. Le Dimet, F-X. Date 2006-09-07 Abstract We present a method to use lagrangian data from remote sensing observation in a data assimilation process for parameters identification in a river hydraulics model based on the bidimensional shallow water equations. The trajectories of particles advected by the flow can be extracted from video images and are used in addition to classical eulerian observations. This lagrangian data bring information on the surface velocity thanks to an appropriate transport model. Numerical twin data assimilation experiments demonstrate that this method makes it possible to significantly improve the identification of bed elevation and initial conditions. Subject data assimilationriver hydraulicsLagrangian dataparameter identification To reference this document use: http://resolver.tudelft.nl/uuid:18cbd8b1-a733-4aff-a40e-c9b4e6b0dec5 Part of collection Conference proceedings Document type conference paper Rights (c) 2006 Honnorat, M.; Monnier, J.; Le Dimet, F-X. Files PDF Honnorat.pdf 787.21 KB Close viewer /islandora/object/uuid:18cbd8b1-a733-4aff-a40e-c9b4e6b0dec5/datastream/OBJ/view