Výsledky vyhledávání - "Christophe Steiner"

Computing the Double-Gyroaverage Term Incorporating Short-Scale Perturbation and Steep Equilibrium Profile by the Interpolation Algorithm

Autor: Christophe Steiner, Michel Mehrenberger, Shuangxi Zhang

Publikováno v: Plasma
Volume 2
Issue 2
Pages 9-126
plasma
plasma, MDPI AG, 2019, 2 (2), pp.91-126. ⟨10.3390/plasma2020009⟩
plasma, 2019, 2 (2), pp.91-126. ⟨10.3390/plasma2020009⟩

International audience; In gyrokinetic model and simulations, when the double-gyroaverage term incorporates the combining effect contributed by the finite Larmor radius, short-scales of the perturbation and steep gradient of the equilibrium profile,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0215f5e00ca475b67327100eb945a573

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Optimization of the Gyroaverage operator based on Hermite interpolation

Autor: Christophe Steiner, Michel Mehrenberger, Julien Bigot, Virginie Grandgirard, Guillaume Latu, T. Cartier-Michaud, Jean Roman, Fabien Rozar

Publikováno v: ESAIM: Proceedings and Surveys
ESAIM: Proceedings and Surveys, EDP Sciences, 2016, ⟨10.1051/proc/201653012⟩
ESAIM: Proceedings and Surveys, 2016, ⟨10.1051/proc/201653012⟩
ESAIM: Proceedings and Surveys, Vol 53, Pp 191-210 (2016)

Gyrokinetic modeling is appropriate for describing Tokamak plasma turbulence, and the gyroaverage operator is a cornerstone of this approach. In a gyrokinetic code, the gyroaveraging scheme needs to be accurate enough to avoid spoiling the data but a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6092878bc16570fc7cc5eb72ad19e8b2
https://doi.org/10.1051/proc/201653012

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Gyroaverage operator for a polar mesh

Autor: G. Latu, Fabien Rozar, Michel Mehrenberger, Virginie Grandgirard, Nicolas Crouseilles, Christophe Steiner

Publikováno v: European Physical Journal D
European Physical Journal D, SpringerLink, 2015, 69 (1), pp.221. 〈10.1140/epjd/e2014-50211-7〉
European Physical Journal D: Atomic, Molecular, Optical and Plasma Physics
The European Physical Journal D : Atomic, molecular, optical and plasma physics
The European Physical Journal D : Atomic, molecular, optical and plasma physics, 2015, 69 (1), pp.221. ⟨10.1140/epjd/e2014-50211-7⟩
The European Physical Journal D
The European Physical Journal D : Atomic, molecular, optical and plasma physics, EDP Sciences, 2015, 69 (1), pp.221. ⟨10.1140/epjd/e2014-50211-7⟩

International audience; In this work, we are concerned with numerical approximation of the gyroaverage operators arising in plasma physics to take into account the effects of the finite Larmor radius corrections. The work initiated in [5] is extended

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbbe01d56cbdb99dfb735cbf2c9b9640
https://hal.inria.fr/hal-01090681/document

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Finite Volume Schemes for Vlasov

Autor: Pierre Glanc, Michel Mehrenberger, Christophe Steiner, Nicolas Crouseilles

Publikováno v: ESAIM Proceedings
ESAIM Proceedings, EDP Sciences, 2012, CEMRACS'11: Multiscale Coupling of Complex Models in Scientific Computing, 38, pp.275-297. 〈10.1051/proc/201238015〉
ESAIM: Proceedings and Surveys, Vol 38, Pp 275-297 (2013)
ESAIM: Proceedings
ESAIM: Proceedings, EDP Sciences, 2012, CEMRACS'11: Multiscale Coupling of Complex Models in Scientific Computing, 38, pp.275-297. ⟨10.1051/proc/201238015⟩
ESAIM: Proceedings, 2012, CEMRACS'11: Multiscale Coupling of Complex Models in Scientific Computing, 38, pp.275-297. ⟨10.1051/proc/201238015⟩

International audience; We present finite volumes schemes for the numerical approximation of the one-dimensional Vlasov-Poisson equation (FOV CEMRACS 2011 project). Stability analysis is performed for the linear advection and links with semi-Lagrangi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89ca7fcebe5994bd895c0363d0243613
https://hal.inria.fr/hal-00653038

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