Incorporating kinetic effects on Nernst advection in inertial fusion simulations
File(s)Brodrick_2018_Plasma_Phys._Control._Fusion_60_084009.pdf (1.37 MB)
Published version
OA Location
Author(s)
Type
Journal Article
Abstract
We present a simple method to incorporate nonlocal effects on the Nernst advection of magnetic fields down steep temperature gradients, and demonstrate its effectiveness in a number of inertial fusion scenarios. This is based on assuming that the relationship between the Nernst velocity and the heat flow velocity is unaffected by nonlocality. The validity of this assumption is confirmed over a wide range of plasma conditions by comparing Vlasov–Fokker–Planck and flux-limited classical transport simulations. Additionally, we observe that the Righi–Leduc heat flow is more severely affected by nonlocality due to its dependence on high velocity moments of the electron distribution function, but are unable to suggest a reliable method of accounting for this in fluid simulations.
Date Issued
2018-08
Date Acceptance
2018-06-04
Citation
Plasma Physics and Controlled Fusion, 2018, 60 (8)
ISSN
0741-3335
Publisher
IOP Publishing
Journal / Book Title
Plasma Physics and Controlled Fusion
Volume
60
Issue
8
Copyright Statement
© 2018 University of York. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (https://creativecommons.org/licenses/by/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
Sponsor
Engineering & Physical Science Research Council (E
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000436548200001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Grant Number
EP/M01102X/1
Source
47th Annual Anomalous Absorption Conference
Subjects
Science & Technology
Physical Sciences
Physics, Fluids & Plasmas
Physics
Nernst
transport
nonlocal
LASER-PRODUCED PLASMAS
NONLOCAL ELECTRON-TRANSPORT
FOKKER-PLANCK EQUATION
MAGNETIC-FIELDS
HEAT-TRANSPORT
ION SOUND
MODEL
CODE
Publication Status
Published
Start Date
2017-06-11
Finish Date
2017-06-16
Coverage Spatial
University of California, CA, USA
Article Number
084009
Date Publish Online
2018-06-26