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Title: Incorporating kinetic effects on Nernst advection in inertial fusion simulations

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.

Authors:
ORCiD logo; ; ORCiD logo; ORCiD logo; ; ; ; ; ORCiD logo; ;
Publication Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1457203
Alternate Identifier(s):
OSTI ID: 1497942
Report Number(s):
LLNL-JRNL-756635
Journal ID: ISSN 0741-3335
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Published Article
Journal Name:
Plasma Physics and Controlled Fusion
Additional Journal Information:
Journal Name: Plasma Physics and Controlled Fusion Journal Volume: 60 Journal Issue: 8; Journal ID: ISSN 0741-3335
Publisher:
IOP Publishing
Country of Publication:
United Kingdom
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY

Citation Formats

Brodrick, J. P., Sherlock, M., Farmer, W. A., Joglekar, A. S., Barrois, R., Wengraf, J., Bissell, J. J., Kingham, R. J., Sorbo, D. Del, Read, M. P., and Ridgers, C. P. Incorporating kinetic effects on Nernst advection in inertial fusion simulations. United Kingdom: N. p., 2018. Web. doi:10.1088/1361-6587/aaca0b.
Brodrick, J. P., Sherlock, M., Farmer, W. A., Joglekar, A. S., Barrois, R., Wengraf, J., Bissell, J. J., Kingham, R. J., Sorbo, D. Del, Read, M. P., & Ridgers, C. P. Incorporating kinetic effects on Nernst advection in inertial fusion simulations. United Kingdom. doi:10.1088/1361-6587/aaca0b.
Brodrick, J. P., Sherlock, M., Farmer, W. A., Joglekar, A. S., Barrois, R., Wengraf, J., Bissell, J. J., Kingham, R. J., Sorbo, D. Del, Read, M. P., and Ridgers, C. P. Tue . "Incorporating kinetic effects on Nernst advection in inertial fusion simulations". United Kingdom. doi:10.1088/1361-6587/aaca0b.
@article{osti_1457203,
title = {Incorporating kinetic effects on Nernst advection in inertial fusion simulations},
author = {Brodrick, J. P. and Sherlock, M. and Farmer, W. A. and Joglekar, A. S. and Barrois, R. and Wengraf, J. and Bissell, J. J. and Kingham, R. J. and Sorbo, D. Del and Read, M. P. and Ridgers, C. P.},
abstractNote = {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.},
doi = {10.1088/1361-6587/aaca0b},
journal = {Plasma Physics and Controlled Fusion},
number = 8,
volume = 60,
place = {United Kingdom},
year = {2018},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1088/1361-6587/aaca0b

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Cited by: 1 work
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Fast Advection of Magnetic Fields by Hot Electrons
journal, August 2010


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journal, July 1984


Magnetic Cavitation and the Reemergence of Nonlocal Transport in Laser Plasmas
journal, February 2008


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journal, October 1983


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journal, March 2017


Extension of a reduced entropic model of electron transport to magnetized nonlocal regimes of high-energy-density plasmas
journal, June 2016


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journal, December 2014


Simultaneous measurement of self-generated magnetic fields and electron heat transport in dense plasma
journal, September 2013


An implicit method for electromagnetic plasma simulation in two dimensions
journal, May 1982


Nonlinear Kinetic Transport of Electrons and Magnetic Field in Laser-Produced Plasmas
journal, August 1985


Magnetic Field and Nonlocal Transport in Laser-Created Plasmas
journal, November 1985


Fast electron transport in laser-produced plasmas and the KALOS code for solution of the Vlasov–Fokker–Planck equation
journal, February 2006

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  • Plasma Physics and Controlled Fusion, Vol. 48, Issue 3
  • DOI: 10.1088/0741-3335/48/3/R01

Field Compressing Magnetothermal Instability in Laser Plasmas
journal, October 2010


Concise calculation of the scaling function, exponents, and probability functional of the Edwards-Wilkinson equation with correlated noise
journal, December 1994


Kinetic theory of ion acoustic waves in a plasma with collisional electrons
journal, December 1995


Novel Characterization of Capsule X-Ray Drive at the National Ignition Facility
journal, March 2014


Kinetic modeling of Nernst effect in magnetized hohlraums
journal, April 2016


Self-Generated Magnetic Fields in the Stagnation Phase of Indirect-Drive Implosions on the National Ignition Facility
journal, April 2017


    Works referencing / citing this record:

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    Suppression of the Biermann Battery and Stabilization of the Thermomagnetic Instability in Laser Fusion Conditions
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