A5026197840- Coastal and Marine Dynamics
- earthquake and tectonic studies
- Ocean Waves and Remote Sensing
- Fluid Dynamics Simulations and Interactions
- Wave and Wind Energy Systems
- Fluid Dynamics and Vibration Analysis
- Tropical and Extratropical Cyclones Research
- Earthquake and Tsunami Effects
- Aeolian processes and effects
- Geological and Geophysical Studies Worldwide
- Hydrology and Sediment Transport Processes
- Electromagnetic Scattering and Analysis
- Computational Fluid Dynamics and Aerodynamics
- Geological formations and processes
- Wind Energy Research and Development
- Methane Hydrates and Related Phenomena
- Advanced Numerical Methods in Computational Mathematics
- Seismic Imaging and Inversion Techniques
- Fluid Dynamics and Turbulent Flows
- Lattice Boltzmann Simulation Studies
- Seismic Waves and Analysis
- Numerical methods for differential equations
- Coastal wetland ecosystem dynamics
- Electromagnetic Simulation and Numerical Methods
- Aerodynamics and Fluid Dynamics Research
Laboratoire d'Hydraulique Saint-Venant
2014-2024
École nationale des ponts et chaussées
2014-2024
Laboratoire National Henri Becquerel
2024
University of Rhode Island
2007-2023
Électricité de France (France)
2023
Centrale Marseille
2023
Institut de Recherche sur les Phénomènes Hors Équilibre
2023
Centre d'Études et d'Expertise sur les Risques, l'Environnement, la Mobilité et l'Aménagement
2017-2022
Paris-Est Sup
2014-2019
University of Delaware
2017
Many studies have modeled the Tohoku tsunami of March 11, 2011 as being due entirely to slip on an earthquake fault, but following discrepancies suggest that further research is warranted. (1) Published models propagation and coastal impact underpredict observed runup heights up 40 m measured along coast Sanriku district in northeast part Honshu Island. (2) cannot reproduce timing high-frequency content waves recorded at three nearshore buoys off Sanriku, nor dispersion properties waveforms...
In this work, we study waves generated by the potential collapse of west flank Cumbre Vieja Volcano (CVV; La Palma, Canary Island, Spain) through numerical simulations performed in two stages: (i) initial slide motion and resulting free surface elevation are first calculated using a 3D Navier‐Stokes model; (ii) then input into 2D (horizontal) Boussinesq model to further simulate propagation nearby islands. Unlike earlier work on CVV, besides similar extreme volume scenario 450 km 3 , our...
A two-way domain decomposition coupling procedure between a fully nonlinear potential flow model and Navier–Stokes solver capturing the free surface with Volume of Fluid method is used to study wave–structure interaction applied offshore wind turbines. Away from structure, large-scale inviscid wave field modeled by code. Wave generation absorption in this 3D hybrid take place outer domain. The codes exchange data region around their common boundaries. Through coupling, waves propagate out...
Abstract Floater motions introduce unsteadiness in the aerodynamics of floating offshore wind turbines. The a turbine after three perturbations are studied: blade pitch step, rotor speed step for which dynamic inflow is expected, and surge velocity step. free vortex wake method an analytical helical model based on Joukowsky used to study behavior induced at blades. As effect clear changes, but models show that very little takes place because by helix not significantly modified: tip...
Abstract. In this paper, we present new results on the potential La Palma collapse event, previously described and studied in Abadie et al. (2012). Three scenarios (i.e., slide volumes of 20, 40 80 km3) are considered, modeling initiation to water generation using THETIS, a 3D Navier–Stokes model. The is Newtonian fluid whose viscosity adjusted approximate granular behavior. After 5 min propagation with generated wave transferred into FUNWAVE-TVD (Total Variation Diminishing version FUNWAVE)...
Abstract We report on the development and validation of a new numerical wave tank (NWT) solving fully nonlinear potential flow (FNPF) equations, as more efficient variation Grilli et al.'s NWT [Grilli al., A model for three‐dimensional overturning waves over arbitrary bottom. Int J Numer Methods Fluids . 2001; 35:829‐867], which was successful at modeling many phenomena, including landslide‐generated tsunamis, rogue waves, initiation breaking slopes. This earlier combined three dimensional...
SUMMARY We present the development, validation, and application of a numerical model for simulation bottom boundary layer (BL) flows induced by arbitrary finite amplitude waves. Our approach is based on coupling ‘near‐field’ local Navier–Stokes (NS) with ‘far‐field’ inviscid flow model, which simulates large scale incident wave propagation transformations over complex ocean bottom, to near‐field, solving Euler equations, in fully nonlinear potential element formalism. The velocity provided...
Recent observations of the coastal impact large tsunamis (e.g., Indian Ocean 2004; Tohoku 2011) and related numerical theoretical works have made it increasingly clear that tsunami waves arrive nearshore as a series long (so-called N-waves) with, often, superposition undular bores around each crest. Such wave trains are much more complex very in contrast with solitary paradigm which for time was accepted idealization both experimental work. The dissipation associated these breaking can be...
Abstract To enable the development of floating offshore wind farms, it is important to have a clear understanding aerodyamic forces applied on turbine. The paper presents comparisons between lifting line free vortex wake method and an actuator in case turbine surge with blade-resolved CFD data as reference. Each model compared quasi-steady estimation loads understand variations due movement. near-wake flow field investigated order give insight into features leading observed behavior. Both...
We present a comparison between two distinct numerical codes dedicated to the study of wave energy converters. Both are developed by authors, using boundary element method with linear triangular elements. One model applies fully nonlinear conditions in wavetank environnment (and thus referred later as NWT), whereas second relies on weak-scatterer approach open-domain and can be considered weakly potential code (referred WSC). For purposes comparison, we limit our forces heaving submerged...
Abstract. Wave-induced boundary layer (BL) flows over sandy rippled bottoms are studied using a numerical model that applies one-way coupling of "far-field" inviscid flow to "near-field" large eddy simulation (LES) Navier–Stokes (NS) model. The incident velocity and pressure fields force the LES, in which near-field, wave-induced, turbulent bottom BL simulated. A sediment suspension transport is embedded within coupled implementation various models has been reported elsewhere, where we...
Abstract. In this paper, we present a new source assessment of the La Palma collapse scenario previously described and studied in Abadie et al. (2012). Three scenarios (i.e., slide volumes 20, 40 80 km3) are considered, from initiation to water waves generation, using THETIS, 3D Navier–Stokes model. The is considered as Newtonian fluid whose viscosity adjusted approximate granular behavior. After 5 minutes propagation with generated wave transferred into FUNWAVE-TVD for 15 Boussinesq model...