Výsledky vyhledávání - "Walid Kheriji"

Attention-based Gated Recurrent Unit for Links Traffic Speed Forecasting

Autor: Mehdi Katranji, Fouad Hadj-Selem, Sami Kraiem, Walid Kheriji, Ghazaleh Khodabandelou

Publikováno v: ITSC

With urge of demands on efficient transport planning policies along with surge of travel flow volumes due to fast urbanization, traffic speed forecasting becomes a canonical and thriving research domain. Furthermore, the vehicles speed plays a critic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5e14f59900acaa65aee09c9f8e3269aa
https://doi.org/10.1109/itsc.2019.8917027

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Nearwell local space and time refinement in reservoir simulation

Autor: Arthur Moncorgé, Walid Kheriji, Roland Masson

Publikováno v: Mathematics and Computers in Simulation
Mathematics and Computers in Simulation, 2014, Volume 118, pp. 273-292. ⟨10.1016/j.matcom.2014.11.022⟩
Mathematics and Computers in Simulation, Elsevier, 2014, Volume 118, pp. 273-292. ⟨10.1016/j.matcom.2014.11.022⟩

International audience; In reservoir simulations, nearwell regions usually require finer space and time scales compared with the remaining of the reservoir domain. We present a domain decomposition algorithm for a two phase Darcy flow model coupling

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::719af03cc740ba57d2beb190da1c7e67
https://doi.org/10.1016/j.matcom.2014.11.022

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Model Reduction for Coupled Near-Well and Reservoir Models Using Multiple Space-Time Discretizations

Autor: Eduardo Gildin, Walid Kheriji, Victor M. Calo, Yalchin Efendiev

Publikováno v: Model Reduction of Parametrized Systems. MS&A (Modeling, Simulation and Applications)
MS&A
MS&A-Model Reduction of Parametrized Systems
Model Reduction of Parametrized Systems ISBN: 9783319587851

In reservoir simulations, fine fully-resolved grids deliver accurate model representations, but lead to large systems of nonlinear equations to solve every time step. Numerous techniques are applied in porous media flow simulations to reduce the comp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::70dce04007127afeb3f6b51aac256276

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An unconditionally stable staggered pressure correction scheme for the compressible Navier-Stokes equations

Autor: Raphaèle Herbin, Jean-Claude Latché, D. Grapsas, Walid Kheriji

Publikováno v: SMAI Journal of Computational Mathematics
SMAI Journal of Computational Mathematics, Société de Mathématiques Appliquées et Industrielles (SMAI), 2016, 2, pp.51-97. ⟨10.5802/smai-jcm.9⟩
SMAI Journal of Computational Mathematics, 2016, 2, pp.51-97. ⟨10.5802/smai-jcm.9⟩

International audience; In this paper we present a pressure correction scheme for the compressible Navier-Stokes equations. The space discretization is staggered, using either the Marker-And Cell (MAC) scheme for structured grids, or a nonconforming

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e50f32e04d433780da32fc7d6b6440a
https://hal.archives-ouvertes.fr/hal-01115250/document

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Nearwell Local Space and Time Refinement for Multi-phase Porous Media Flows

Autor: Roland Masson, Arthur Moncorgé, Walid Kheriji

Publikováno v: ECMOR XIV
ECMOR XIV, Sep 2014, Catania, Italy. ⟨10.3997/2214-4609.20141769⟩

International audience; Nearwell regions in reservoir simulations usually require fine space and time scales due to several physical processes such as higher Darcy velocities, the coupling of the stationary well model with the transient reservoir mod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b99ab4a30a9244148823ca9fa3a1d6b9
https://hal.archives-ouvertes.fr/hal-01097710

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Staggered discretizations, pressure correction schemes and all speed barotropic flows

Autor: Jean-Claude Latché, Laura Gastaldo, Raphaèle Herbin, Céline Lapuerta, Walid Kheriji

Publikováno v: FInite Volumes for Complex Applications VI Problems & Perspectives
FVC6, International Symposium
FVC6, International Symposium, Jun 2011, Prague, Czech Republic. pp.839-855, ⟨10.1007/978-3-642-20671-9_86⟩
Finite Volumes for Complex Applications VI Problems & Perspectives ISBN: 9783642206702

International audience; We present in this paper a class of schemes for the solution of the barotropic Navier- Stokes equations. These schemes work on general meshes, preserve the stability properties of the continuous problem, irrespectively of the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ac71e8cf2433876661a0ebfb83952a2
https://hal.archives-ouvertes.fr/hal-00576246/document

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Discretization of the viscous dissipation term with the MAC scheme

Autor: Raphaèle Herbin, Walid Kheriji, Fabrice Babik, Jean-Claude Latché

Publikováno v: Finite Volumes for Complex Applications VI Problems & Perspectives ISBN: 9783642206702
FVCA 6, Internal Symposium
FVCA 6, Internal Symposium, Jun 2011, Prague, Czech Republic. pp.571-579, ⟨10.1007/978-3-642-20671-9_60⟩

International audience; We propose a discretization for the MAC scheme of the viscous dissipation term τ (u) : ∇u (where τ (u) stands for the shear stress tensor associated to the velocity field u), which is suitable for the approximation of this

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::281c2d26b6616c8fdf941c47f42445e8
https://doi.org/10.1007/978-3-642-20671-9_60

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Nonlinear Preconditioning: how to use a Nonlinear Schwarz Method to Precondition Newton's Method

Autor: Martin J. Gander, Victorita Dolean, Roland Masson, Walid Kheriji, Felix Kwok

Publikováno v: SIAM J. Sci. Comp.

For linear problems, domain decomposition methods can be used directly as iterative solvers, but also as preconditioners for Krylov methods. In practice, Krylov acceleration is almost always used, since the Krylov method finds a much better residual

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::92298944472179d4cceb0fc63cd8e9e1
http://www.unige.ch/~gander/preprints.php

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