4.4 Article

A nonlocal electron transport model in the diffusion scaling of hydrodynamics

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Computer Science, Interdisciplinary Applications

A deterministic numerical scheme for an electron heat transport model

A. Chrisment et al.

Summary: In inertial confinement fusion plasma, the electron population may be strongly out-of-equilibrium, making it difficult to analyze the effects of microscopic processes on the macroscopic evolution. To overcome this, reduced kinetic transport models are developed to provide a kinetic closure and analyze finer kinetic phenomena.

MATHEMATICS AND COMPUTERS IN SIMULATION (2023)

Article Computer Science, Interdisciplinary Applications

An asymptotic preserving method for the linear transport equation on general meshes

Pierre Anguill et al.

Summary: This paper presents a numerical method for solving the linear transport equation on unstructured meshes, with applications in radiative hydrodynamics. The method is based on the micro-macro paradigm and the Discrete Ordinates (S-N) angular discretization, allowing for the handling of different radiation regimes and coupling with a Lagrangian hydrodynamics solver.

JOURNAL OF COMPUTATIONAL PHYSICS (2022)

Article Computer Science, Interdisciplinary Applications

High order entropy stable and positivity-preserving discontinuous Galerkin method for the nonlocal electron heat transport model

Nuo Lei et al.

Summary: In this paper, a high-order discontinuous Galerkin method is developed for the numerical solution of the nonlocal electron heat transport model. The method is shown to have high accuracy and positivity-preserving properties through numerical examples. The comparison between the local and nonlocal models reveals additional physical phenomena such as flux reduction and preheat effect.

JOURNAL OF COMPUTATIONAL PHYSICS (2022)

Article Physics, Fluids & Plasmas

Analysis of a kinetic model for electron heat transport in inertial confinement fusion plasmas

A. Chrisment et al.

Summary: This article explores the methods and limitations of determining the electron heat flux density on a macroscopic scale. The widely used diffusion equation approach is limited to transport induced by temperature gradients and does not account for other sources of fast electrons. Therefore, alternative reduced kinetic models have become the focus of research.

PHYSICS OF PLASMAS (2022)

Article Physics, Fluids & Plasmas

First high radiant energy xenon-pipe-based x-ray source on LMJ

M. Primout et al.

Summary: This article reports on the performance of the highest radiant energy x-ray source at the LaserMegaJoule facility, which was produced by the L-shell emission of xenon. The target used was an epoxy ortho-cylinder tube containing xenon gas, and the facility delivered a total energy of 90kJ of laser and a total power of 30 TW. The x-ray emission was characterized using two broadband spectrometers, and radiant energy up to 0.5kJ/sr was recorded in the xenon L-shell band. Three-dimensional radiation-hydrodynamic calculations were necessary to accurately measure the radiant energy due to the strong asymmetric laser irradiation.

PHYSICS OF PLASMAS (2022)

Article Physics, Fluids & Plasmas

Transport coefficients for magnetic-field evolution in inviscid magnetohydrodynamics

J. R. Davies et al.

Summary: This study explores the effects of magnetized resistivity and electrothermal tensors on magnetic field generation, diffusion, and advection. It finds that errors in fits by Epperlein and Haines, as well as Braginskii, can lead to physically incorrect results for cross field advection, particularly at small Hall parameters. New fits for the cross field advection terms are proposed to address these issues.

PHYSICS OF PLASMAS (2021)

Article Physics, Multidisciplinary

Symmetric Set of Transport Coefficients for Collisional Magnetized Plasma

James D. Sadler et al.

Summary: Research shows that commonly used approximations for alpha(perpendicular to) and beta(perpendicular to) transport coefficients may cause artificial magnetic dissipation and discontinuities, while magnetic transport actually relies on other coefficients. By providing fitting functions to rectify this problem, the discrepancies with kinetic simulations have been resolved, leading to a reduction in density asymmetry amplitude in specific areas. Recognizing the importance of certain coefficients, the symmetry of magnetic and thermal transport, as well as the symmetry of the coefficients themselves, has been explicitly outlined.

PHYSICAL REVIEW LETTERS (2021)

Article Computer Science, Interdisciplinary Applications

Implicit reduced Vlasov-Fokker-Planck-Maxwell model based on high-order mixed elements

Jan Nikl et al.

Summary: The article proposes a multi-dimensional conservative implicit Vlasov-Fokker-Planck-Maxwell method that approximates the distribution function using a truncated Cartesian tensor expansion, modeling the electric and magnetic fields self-consistently to describe the generation process and emergence of non-locality in detail. The method ensures conservation properties through the spatial order proportional to the polynomial order of the finite elements, and benchmark tests on specific problems show second order convergence in the velocity direction.

JOURNAL OF COMPUTATIONAL PHYSICS (2021)

Article Physics, Fluids & Plasmas

Measuring heat flux from collective Thomson scattering with non-Maxwellian distribution functions

R. J. Henchen et al.

PHYSICS OF PLASMAS (2019)

Article Physics, Fluids & Plasmas

LMJ & PETAL status and program overview

Jean-Luc Miquel et al.

NUCLEAR FUSION (2019)

Article Physics, Multidisciplinary

Measurement of Preheat Due to Nonlocal Electron Transport in Warm Dense Matter

K. Falk et al.

PHYSICAL REVIEW LETTERS (2018)

Article Physics, Fluids & Plasmas

Nonlocal transport hydrodynamic model for laser heated plasmas

M. Holec et al.

PHYSICS OF PLASMAS (2018)

Article Physics, Fluids & Plasmas

Incorporating kinetic effects on Nernst advection in inertial fusion simulations

J. P. Brodrick et al.

PLASMA PHYSICS AND CONTROLLED FUSION (2018)

Article Physics, Multidisciplinary

Observation of Nonlocal Heat Flux Using Thomson Scattering

R. J. Henchen et al.

PHYSICAL REVIEW LETTERS (2018)

Article Mathematics, Applied

PARTICLE MICRO-MACRO DECOMPOSITION BASED NUMERICAL SCHEME FOR COLLISIONAL KINETIC EQUATIONS IN THE DIFFUSION SCALING

Anais Crestetto et al.

COMMUNICATIONS IN MATHEMATICAL SCIENCES (2018)

Article Physics, Mathematical

An Admissible Asymptotic-Preserving Numerical Scheme for the Electronic M1 Model in the Diffusive Limit

Sebastien Guisset et al.

COMMUNICATIONS IN COMPUTATIONAL PHYSICS (2018)

Article Mathematics, Applied

ASYMPTOTIC-PRESERVING WELL-BALANCED SCHEME FOR THE ELECTRONIC &ITM&IT1 MODEL IN THE DIFFUSIVE LIMIT: PARTICULAR CASES

Sebastien Guisset et al.

ESAIM-MATHEMATICAL MODELLING AND NUMERICAL ANALYSIS-MODELISATION MATHEMATIQUE ET ANALYSE NUMERIQUE (2017)

Article Physics, Fluids & Plasmas

Progress towards a more predictive model for hohlraum radiation drive and symmetry

O. S. Jones et al.

PHYSICS OF PLASMAS (2017)

Article Physics, Fluids & Plasmas

An improved and fully implicit multi-group non-local electron transport model and its validations

C. D. Sijoy et al.

HIGH ENERGY DENSITY PHYSICS (2017)

Article Computer Science, Interdisciplinary Applications

The moment-guided Monte Carlo method

Pierre Degond et al.

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS (2011)

Article Computer Science, Interdisciplinary Applications

A Vlasov-Fokker-Planck code for high energy density physics

M. Tzoufras et al.

JOURNAL OF COMPUTATIONAL PHYSICS (2011)

Article Mathematics

Relaxed micro-macro schemes for kinetic equations

Mohammed Lemou

COMPTES RENDUS MATHEMATIQUE (2010)

Article Computer Science, Interdisciplinary Applications

A class of asymptotic-preserving schemes for kinetic equations and related problems with stiff sources

Francis Filbet et al.

JOURNAL OF COMPUTATIONAL PHYSICS (2010)

Article Physics, Multidisciplinary

Rapid self-magnetization of laser speckles in plasmas by nonlinear anisotropic instability

A. G. R. Thomas et al.

NEW JOURNAL OF PHYSICS (2009)

Article Physics, Fluids & Plasmas

A Fokker-Planck Code for Laser-Produced Plasmas

Zhao Bin et al.

PLASMA SCIENCE & TECHNOLOGY (2008)

Article Physics, Fluids & Plasmas

A practical nonlocal model for heat transport in magnetized laser plasmas

PD Nicolaï et al.

PHYSICS OF PLASMAS (2006)

Article Mathematics, Applied

Implicit schemes for the Fokker-Planck-Landau equation

M Lemou et al.

SIAM JOURNAL ON SCIENTIFIC COMPUTING (2005)

Article Computer Science, Interdisciplinary Applications

An implicit Vlasov-Fokker-Planck code to model non-local electron transport in 2-D with magnetic fields

RJ Kingham et al.

JOURNAL OF COMPUTATIONAL PHYSICS (2004)

Article Mathematics

Fast implicit schemes for the Fokker-Planck-Landau equation

M Lemou et al.

COMPTES RENDUS MATHEMATIQUE (2004)

Article Physics, Fluids & Plasmas

A nonlocal electron conduction model for multidimensional radiation hydrodynamics codes

GP Schurtz et al.

PHYSICS OF PLASMAS (2000)

Article Physics, Fluids & Plasmas

Linear delta-f simulations of nonlocal electron heat transport

S Brunner et al.

PHYSICS OF PLASMAS (2000)