Physics-informed neural networks for gravity currents reconstruction from limited data

Autor: Mickaël Delcey, Yoann Cheny, Sébastien Kiesgen de richter

The present work investigates the use of physics-informed neural networks (PINNs) for the three-dimensional (3D) reconstruction of unsteady gravity currents from limited data. In the PINN context, the flow fields are reconstructed by training a neura

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89c56efa48a28910c7cae836a8a7b697
http://arxiv.org/abs/2211.09715

Discharge of vibrated granular silo: A grain scale approach

Autor: Yoann Cheny, Jean-Yves Morel, Arthur Pascot, Mathieu Jenny, Sébastien Kiesgen de Richter, Sergiy Antonyuk

Publikováno v: Powder Technology. 397:116998

The present work focuses on granular flows in a nearly-2D silo when external vibrations are applied. Experimental measurements and numerical simulations based on discrete element method (DEM) were performed in order to study the impact of both vibrat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::415ac0b076e07d20ca43cee71d2018f9
https://doi.org/10.1016/j.powtec.2021.11.042

Application of the LS-STAG Immersed Boundary/Cut-Cell Method to Viscoelastic Flow Computations

Autor: Olivier Botella, Farhad Nikfarjam, Marcela Stoica, Yoann Cheny

Publikováno v: Communications in Computational Physics
Communications in Computational Physics, Global Science Press, 2016, 20 (04), pp.870-901. ⟨10.4208/cicp.080615.010216a⟩

This paper presents the extension of a well-established Immersed Boundary (IB)/cut-cell method, the LS-STAG method (Y. Cheny & O. Botella, J. Comput. Phys. Vol. 229, 1043-1076, 2010), to viscoelastic flow computations in complex geometries. We recall

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccd1806adc5f264bfa34f64a3c6b65a9
https://hal.univ-lorraine.fr/hal-01408974

An immersed boundary/level-set method for incompressible viscous flows in complex geometries with good conservation properties

Autor: Yoann Cheny, Olivier Botella

Publikováno v: Revue Européenne de Mécanique Numérique/European Journal of Computational Mechanics
Revue Européenne de Mécanique Numérique/European Journal of Computational Mechanics, Hermès / Paris : Lavoisier 2012, 18 (7-8), pp.561-587. ⟨10.3166/ejcm.18.561-587⟩

This paper concerns the development of a new Cartesian grid / immersed boundary (IB) method for the computation of incompressible viscous flows in irregular geometries. In IB methods, the computational grid is not aligned with the irregular boundary,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0859db97b6307f7ab2593502dd4aeece
https://hal.archives-ouvertes.fr/hal-03012952

An Overview of the LS-STAG Immersed Boundary Method for Viscous Incompressible Flows

Autor: Olivier Botella, Yoann Cheny

Publikováno v: Computational Fluid Dynamics 2010 ISBN: 9783642178832

The LS-STAG method is an immersed boundary method for viscous incompressible flows based on the staggered MAC arrangement for Cartesian grids, where the irregular boundary is sharply represented by its level-set function. The level-set function enabl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aef067f90e12977c0221d360213c533c
https://doi.org/10.1007/978-3-642-17884-9_77