Zobrazeno 1 - 10
of 993
pro vyhledávání: '"HELLUY"'
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 77, Pp 46-78 (2024)
We perform a stability analysis of the Vectorial Lattice-Boltzmann Method (VLBM). The VLBM has been introduced in [1–3, 9, 18]. It is a variant of the LBM with extended stability features: it allows handling compressible flows with shock waves, whi
Externí odkaz:
https://doaj.org/article/3f094f4125ad4ab0bdad352d404e891d
Autor:
Flint Clément, Helluy Philippe
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 77, Pp 79-99 (2024)
This paper presents a new solution to address the challenge of increasing memory usage in high-performance computing simulations on structured grids. Our approach utilizes a lossy compression scheme based on the Discrete Wavelet Transform (DWT) to ac
Externí odkaz:
https://doaj.org/article/91728a16916d494498d14821b2e598aa
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 69, Pp I-I (2020)
Externí odkaz:
https://doaj.org/article/99477351230f40629942b347dd478725
Autor:
Badwaik Jayesh, Boileau Matthieu, Coulette David, Franck Emmanuel, Helluy Philippe, Klingenberg Christian, Mendoza Laura, Oberlin Herbert
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 63, Pp 60-77 (2018)
In this paper we present and implement the Palindromic Discontinuous Galerkin (PDG) method in dimensions higher than one. The method has already been exposed and tested in [4] in the one-dimensional context. The PDG method is a general implicit high
Externí odkaz:
https://doaj.org/article/8531a2c6d97a4a889ef69e48e22f43d3
We present a novel framework for the development of fourth-order lattice Boltzmann schemes to tackle multidimensional nonlinear systems of conservation laws. As for other numerical schemes for hyperbolic problems, high-order accuracy applies only to
Externí odkaz:
http://arxiv.org/abs/2403.13406
We propose a new stability analysis of the Vectorial Lattice-Boltzmann Method (VLBM). The VLBM is a variant of the LBM with extended stability features: it allows to handle compressible flows with shock waves, while the LBM is limited to low-Mach num
Externí odkaz:
http://arxiv.org/abs/2402.09813
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 66, Pp I-I (2019)
Externí odkaz:
https://doaj.org/article/1467ac98dea74293a689793b6ba19957
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 55, Pp 61-82 (2016)
In this article, we detail the construction of a physics-based preconditioner. The Schur decomposition is the key point of the method which is tested on two hyperbolic systems : acoustic wave equations and shallow water equations without source term.
Externí odkaz:
https://doaj.org/article/927b964f72a845c1a8b8c51d2a959f21
Autor:
Guisset Sebastien, Gutnic Michael, Helluy Philippe, Massaro Michel, Navoret Laurent, Pham Nhung, Roberts Malcolm
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 53, Pp 120-132 (2016)
We construct a hyperbolic approximation of the Vlasov equation using a method of reduction [10, 14, 22] in which the dependency on the velocity variable is removed. The reduction relies on a semi-discrete finite element approximation in the velocit
Externí odkaz:
https://doaj.org/article/2d3d1d85de4840a18eb7937dda777495
Autor:
Helluy Philippe, Jung Jonathan
Publikováno v:
ESAIM: Proceedings and Surveys, Vol 45, Pp 349-358 (2014)
In this work we propose an efficient finite volume approximation of two-fluid flows. Our scheme is based on three ingredients. We first construct a conservative scheme that removes the pressure oscillations phenomenon at the interface. The construc
Externí odkaz:
https://doaj.org/article/bbb6d1dfee7e400f84cff3a5727a97f7