Recycling Krylov Subspaces and Truncating Deflation Subspaces for Solving Sequence of Linear Systems

Autor: Laura Grigori, Pascal Hénon, Hussam Al Daas, Philippe Ricoux

Publikováno v: ACM Transactions on Mathematical Software
ACM Transactions on Mathematical Software, 2021, 47 (2), pp.1-30. ⟨10.1145/3439746⟩
ACM Transactions on Mathematical Software, Association for Computing Machinery, 2021, 47 (2), pp.1-30. ⟨10.1145/3439746⟩

International audience; This article presents deflation strategies related to recycling Krylov subspace methods for solving one or a sequence of linear systems of equations. Besides well-known strategies of deflation, Ritz-, and harmonic Ritz-based d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13851491d913bd5edd770792a63b35ab
https://doi.org/10.1145/3439746

Experiments and CFD-DEM simulations of cohesive particles sedimentation in stilled fluid

Autor: Limin Wang, Runrun Lu, Philippe Ricoux, Lin Zhang

Publikováno v: Powder Technology. 356:222-230

Particle agglomeration is observed in slurry loop reactors due to the presence of cohesive force between the swollen polyethylene (PE) particles, which has direct impact on the hydrodynamics predictions. However, a qualitative study of the cohesive f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::31d4103c80ba2b6ca9b3f9c2a5fd5254
https://doi.org/10.1016/j.powtec.2019.05.018

Simulations of intermittent two-phase flows in pipes using smoothed particle hydrodynamics

Autor: Florian De Vuyst, Thomas Douillet-Grellier, Philippe Ricoux, Henri Calandra

Publikováno v: Computers & Fluids. 177:101-122

Slug flows are a typical intermittent two-phase flow pattern that can occur in submarine pipelines connecting the wells to the production facility and that is known to cause undesired consequences. In this context, computational fluid dynamics appear

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::835f8e0fb8a1a6d29295688038c5fd2d
https://doi.org/10.1016/j.compfluid.2018.10.004

Modeling of complex liquid-solid flow of particle swelling in slurry loop reactors

Autor: Jianhua Chen, Jinghai Li, Ning Yang, Philippe Ricoux, Rongtao Zhou, Alvaro Fernandez

Publikováno v: Chemical Engineering Science. 176:476-490

A swelling-dependent two-fluid model (STFM) is developed for the liquid-solid flows of swelling particles in polyethylene reactors. The model integrates the two-fluid model (TFM) with a species transport equation (STE) to account for the diffusion of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::aa8d376dfb5e009fccb34ab492cc79c1
https://doi.org/10.1016/j.ces.2017.11.012

Sparse hierarchical interaction learning with epigraphical projection

Autor: Meriam Chebre, Nelly Pustelnik, Mingyuan Jiu, Philippe Ricoux, Stefan Janaqi, Lin Qi

Publikováno v: Journal of Signal Processing Systems
Journal of Signal Processing Systems, Springer, In press
Journal of Signal Processing Systems, 2020, 92, pp.637-654. ⟨10.1007/s11265-019-01478-1⟩
Journal of Signal Processing Systems, Springer, 2020, 92, pp.637-654. ⟨10.1007/s11265-019-01478-1⟩

International audience; This work focuses on learning optimization problems with quadratical interactions between variables, which go beyond the additive models of traditional linear learning. We investigate more specifically two different methods en

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c02ef88542506efc9b8073aae129d6d6