Kinetic modeling of Nernst effect in magnetized hohlraums
File(s)PhysRevE.93.043206.pdf (1.4 MB) Joglekar-PRE-2016--accepted.pdf (1.79 MB)
Published version
Accepted version
Author(s)
Joglekar, AS
Ridgers, CP
Kingham, RJ
Thomas, AG
Type
Journal Article
Abstract
We present nanosecond time-scale Vlasov-Fokker-Planck-Maxwell modeling of magnetized plasma transport and dynamics in a hohlraum with an applied external magnetic field, under conditions similar to recent experiments. Self-consistent modeling of the kinetic electron momentum equation allows for a complete treatment of the heat flow equation and Ohm's law, including Nernst advection of magnetic fields. In addition to showing the prevalence of nonlocal behavior, we demonstrate that effects such as anomalous heat flow are induced by inverse bremsstrahlung heating. We show magnetic field amplification up to a factor of 3 from Nernst compression into the hohlraum wall. The magnetic field is also expelled towards the hohlraum axis due to Nernst advection faster than frozen-in flux would suggest. Nonlocality contributes to the heat flow towards the hohlraum axis and results in an augmented Nernst advection mechanism that is included self-consistently through kinetic modeling.
Date Issued
2016-04-22
Date Acceptance
2016-04-06
Citation
Physical Review E, 2016, 93 (4)
ISSN
1539-3755
Publisher
American Physical Society
Journal / Book Title
Physical Review E
Volume
93
Issue
4
Copyright Statement
© 2016 American Physical Society
Sponsor
Engineering & Physical Science Research Council (EPSRC)
Grant Number
EP/C531566/1
Subjects
Science & Technology
Physical Sciences
Physics, Fluids & Plasmas
Physics, Mathematical
Physics
INVERSE BREMSSTRAHLUNG
PLASMA
DISTRIBUTIONS
TRANSPORT
FIELDS
Fluids & Plasmas
01 Mathematical Sciences
02 Physical Sciences
09 Engineering
Publication Status
Published
Article Number
043206