Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Ward Melis"'
Autor:
Ward Melis, Giovanni Samaey
Publikováno v:
Journal of Computational Science. 20:162-176
We study a variance reduction strategy based on control variables for simulating the averaged macroscopic behavior of a stochastic slow-fast system. We assume that this averaged behavior can be written in terms of a few slow degrees of freedom, and t
Publikováno v:
SMAI Journal of Computational Mathematics
SMAI Journal of Computational Mathematics, 2019, 5, pp.53-88. ⟨10.5802/smai-jcm.43⟩
SMAI Journal of Computational Mathematics, Société de Mathématiques Appliquées et Industrielles (SMAI), 2019, 5, pp.53-88. ⟨10.5802/smai-jcm.43⟩
SMAI Journal of Computational Mathematics, 2019, 5, pp.53-88. ⟨10.5802/smai-jcm.43⟩
SMAI Journal of Computational Mathematics, Société de Mathématiques Appliquées et Industrielles (SMAI), 2019, 5, pp.53-88. ⟨10.5802/smai-jcm.43⟩
We present high-order, fully explicit projective integration schemes for nonlinear collisional kinetic equations such as the BGK and Boltzmann equation. The methods first take a few small (inner) steps with a simple, explicit method (such as direct f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e7f087d28d73e035908861a7dc3bae4
https://hal.science/hal-01666346/document
https://hal.science/hal-01666346/document
Autor:
Giovanni Samaey, Ward Melis
Publikováno v:
ICCS
We propose a novel variance reduction strategy based on control variables for simulating the averaged equation of a stochastic slow-fast system. In this system, we assume that the fast equation is ergodic, implying the existence of an invariant measu
Autor:
Giovanni Samaey, Ward Melis
© 2018, Springer Science+Business Media, LLC, part of Springer Nature. We study a general, high-order, fully explicit numerical method for simulating kinetic equations with a BGK-type collision model with multiple relaxation times. In that case, the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b2714bb2ea33eda92d65b5b86cc58953
https://lirias.kuleuven.be/handle/123456789/628913
https://lirias.kuleuven.be/handle/123456789/628913
Publikováno v:
Journal of Computational Physics
Journal of Computational Physics, Elsevier, 2017, 340, pp.1-25. ⟨10.1016/j.jcp.2017.03.027⟩
Journal of Computational Physics, Elsevier, 2017, 340, pp.1-25. ⟨10.1016/j.jcp.2017.03.027⟩
We present a general, high-order, fully explicit relaxation scheme which can be applied to any system of nonlinear hyperbolic conservation laws in multiple dimensions. The scheme consists of two steps. In a first (relaxation) step, the nonlinear hype
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65e4a94899e165f544dc5e81c3fd7bf6
https://hal.archives-ouvertes.fr/hal-01706186
https://hal.archives-ouvertes.fr/hal-01706186
Publikováno v:
Finite Volumes for Complex Applications VIII
Finite Volumes for Complex Applications VIII, Jun 2017, Lille, France. pp.155-162, ⟨10.1007/978-3-319-57394-6⟩
Springer Proceedings in Mathematics & Statistics ISBN: 9783319573939
Finite Volumes for Complex Applications VIII, Jun 2017, Lille, France. pp.155-162, ⟨10.1007/978-3-319-57394-6⟩
Springer Proceedings in Mathematics & Statistics ISBN: 9783319573939
We present a high-order, fully explicit, asymptotic-preserving projective integration scheme for the nonlinear BGK equation. The method first takes a few small (inner) steps with a simple, explicit method (such as direct forward Euler) to damp out th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b56d7a1dd9535b6f2ba3fc88e76298e1
Autor:
Giovanni Samaey, Ward Melis
Publikováno v:
ICCS
We study the design of a general, fully explicit numerical method for simulating kinetic equations with an extended BGK collision model allowing for multiple relaxation times. In that case, the problem is stiff and we show that its spectrum consists
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f9ab745fd28db4ae08ceb1d21b1ce6d
https://lirias.kuleuven.be/handle/123456789/499258
https://lirias.kuleuven.be/handle/123456789/499258
Publikováno v:
Numerical Mathematics and Advanced Applications-ENUMATH 2013
Numerical Mathematics and Advanced Applications-ENUMATH 2013, 2013, Lausanne, Switzerland
Lecture Notes in Computational Science and Engineering ISBN: 9783319107042
ENUMATH
Numerical Mathematics and Advanced Applications-ENUMATH 2013, 2013, Lausanne, Switzerland
Lecture Notes in Computational Science and Engineering ISBN: 9783319107042
ENUMATH
We study a projective integration scheme for a kinetic equation in both the diffusive and hydrodynamic scaling, on which a limiting diffusion or advection equation exists. The scheme first takes a few small steps with a simple, explicit method, such
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9102f89de654c157c52b024ba19536ee
https://lirias.kuleuven.be/handle/123456789/423853
https://lirias.kuleuven.be/handle/123456789/423853