Zobrazeno 1 - 10
of 95
pro vyhledávání: '"P. Kestener"'
Autor:
Tremblin, P., Bloch, H., González, M., Audit, E., Fromang, S., Padioleau, T., Kestener, P., Kokh, S.
Publikováno v:
A&A 653, A30 (2021)
Clouds are expected to form in a wide range of conditions in the atmosphere of exoplanets given the large range of possible condensible species. However this diversity might lead to very different small-scale dynamics depending on radiative transfer
Externí odkaz:
http://arxiv.org/abs/2106.12448
Publikováno v:
A&A 653, A54 (2021)
We investigate the impact on convective numerical simulations of thermo-compositional diabatic processes. We focus our study on simulations with a stabilizing temperature gradient and a destabilizing mean-molecular weight gradient. We aim to establis
Externí odkaz:
http://arxiv.org/abs/2106.08842
Numerical codes using the Lattice Boltzmann Methods (LBM) for simulating one- or two-phase flows are widely compiled and run on graphical process units. However, those computational units necessitate to re-write the program by using a low-level langu
Externí odkaz:
http://arxiv.org/abs/2003.06342
Convection is an important physical process in astrophysics well-studied using numerical simulations under the Boussinesq and/or anelastic approximations. However these approaches reach their limits when compressible effects are important in the high
Externí odkaz:
http://arxiv.org/abs/1903.09043
Autor:
Tremblin, P., Padioleau, T., Phillips, M., Chabrier, G., Baraffe, I., Fromang, S., Audit, E., Bloch, H., Burgasser, A. J., Drummond, B., Gonzalez, M., Kestener, P., Kokh, S., Lagage, P. -O., Stauffert, M.
By generalizing the theory of convection to any type of thermal and compositional source terms (diabatic processes), we show that thermohaline convection in Earth oceans, fingering convection in stellar atmospheres, and moist convection in Earth atmo
Externí odkaz:
http://arxiv.org/abs/1902.03553
Autor:
Drui, Florence, Fikl, Alexandru, Kestener, Pierre, Kokh, Samuel, Larat, Adam, Chenadec, Vincent Le, Massot, Marc
Publikováno v:
ESAIM: Proceedings and Surveys, EDP Sciences, 2016, 53, pp.232 - 247
Many physical problems involve spatial and temporal inhomogeneities that require a very fine discretization in order to be accurately simulated. Using an adaptive mesh, a high level of resolution is used in the appropriate areas while keeping a coars
Externí odkaz:
http://arxiv.org/abs/1709.07700
Magnetohydrodynamic (MHD) turbulence driven by the magnetorotational instability can provide diffusive transport of angular momentum in astrophysical disks, and a widely studied computational model for this process is the ideal, stratified, isotherma
Externí odkaz:
http://arxiv.org/abs/1702.00777
This work focuses on the numerical approximation of the Shallow Water Equations (SWE) using a Lagrange-Projection type approach. We propose to extend to this context recent implicit-explicit schemes developed in the framework of compressibleflows, wi
Externí odkaz:
http://arxiv.org/abs/1604.01738
Autor:
Provost, Hervé Le, Schanne, Stéphane, Flouzat, Christophe, Kestener, Pierre, Chaminade, Thomas, Donati, Modeste, Château, Frédéric, Daly, François, Fontignie, Jean
The Scientific Trigger Unit (UTS) is a satellite equipment designed to detect Gamma Ray Bursts (GRBs) observed by the onboard 6400 pixels camera ECLAIRs. It is foreseen to equip the low-Earth orbit French-Chinese satellite SVOM and acts as the GRB tr
Externí odkaz:
http://arxiv.org/abs/1412.0481
Autor:
Schanne, Stéphane, Provost, Hervé Le, Kestener, Pierre, Gros, Aleksandra, Cortial, Marin, Götz, Diego, Sizun, Patrick, Château, Frédéric, Cordier, Bertrand
The on-board Scientific Trigger Unit (UTS) is designed to detect Gamma Ray Bursts (GRBs) in real-time, using the data produced by the ECLAIRs camera, foreseen to equip the future French-Chinese satellite mission SVOM (Space-based Variable Objects Mon
Externí odkaz:
http://arxiv.org/abs/1411.7810