skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

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 [1];  [2]; ORCiD logo [2]; ORCiD logo [3];  [4];  [5];  [6];  [7]; ORCiD logo [1];  [1];
  1. Univ. of York (United Kingdom)
  2. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  3. Univ. of California, Los Angeles, CA (United States)
  4. Univ. of Technology, Eindhoven (Netherlands)
  5. Univ. of Manchester (United Kingdom)
  6. Univ. of Bath (United Kingdom)
  7. Imperial College, London (United Kingdom)
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; 943747
Grant/Contract Number:  
AC52-07NA27344
Resource Type:
Published Article
Journal Name:
Plasma Physics and Controlled Fusion
Additional Journal Information:
Journal Volume: 60; Journal Issue: 8; Journal ID: ISSN 0741-3335
Publisher:
IOP Science
Country of Publication:
United States
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 States: 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 States. 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 States. 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 States},
year = {2018},
month = {6}
}

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

Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

Save / Share: