Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Pichard Teddy"'
Autor:
Pichard Teddy
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 75, Pp 86-95 (2023)
This review presents some recent works on the construction of closure relations for moment systems extracted from a kinetic equation. A rough construction of those closures and the main properties of the resulting systems are described. Especially, b
Externí odkaz:
https://doaj.org/article/9c483c7782d446ed92be66c4ef24a68f
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 72, Pp 93-116 (2023)
This work focuses on the numerical approximation of the barotropic Baer-Nunziato two-phase flow model. We propose a numerical scheme that relies on an operator splitting method corresponding to a separate treatment of the acoustic and the material tr
Externí odkaz:
https://doaj.org/article/d60e1590819a4a83bb981c1a158830ce
The $\phi$-divergence-based moment method was recently introduced Abdelmalik et al. (2023) for the discretization of the radiative transfer equation. At the continuous level, this method is very close to the entropy-based MN methods and possesses its
Externí odkaz:
http://arxiv.org/abs/2310.05489
In this contribution, we introduce a versatile formalism to derive unified two-phase models describing both the separated and disperse regimes. It relies on the stationary action principle and interface geometric variables. The main ideas are introdu
Externí odkaz:
http://arxiv.org/abs/2308.15641
The method of moments is widely used for the reduction of kinetic equations into fluid models. It consists in extracting the moments of the kinetic equation with respect to a velocity variable, but the resulting system is a priori underdetermined and
Externí odkaz:
http://arxiv.org/abs/2304.01758
We consider hyperbolic systems of conservation laws with relaxation source terms leading to a diffusive asymptotic limit under a parabolic scaling. We introduce a new class of secondorder in time and space numerical schemes, which are uniformly asymp
Externí odkaz:
http://arxiv.org/abs/2205.09993
Publikováno v:
In International Journal of Multiphase Flow July 2024 177
Autor:
Laguna, Alejandro Alvarez, Pichard, Teddy, Magin, Thierry, Chabert, Pascal, Bourdon, Anne, Massot, Marc
We present a novel numerical scheme for the efficient and accurate solution of the isothermal two-fluid (electron and ion) equations coupled to Poisson's equation for low-temperature plasmas. The model considers electrons and ions as separate fluids,
Externí odkaz:
http://arxiv.org/abs/1904.13092
Publikováno v:
AIP Conference Proceedings; 2024, Vol. 2996 Issue 1, p1-10, 10p
Autor:
Birindelli, Gabriele, Feugeas, Jean-Luc, Caron, Jérôme, Dubroca, Bruno, Kantor, Guy, Page, Jonathan, Pichard, Teddy, Tikhonchuk, Vladimir, Nicolaï, Philippe
Publikováno v:
In Physica Medica October 2017 42:305-312