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.
- 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. https://doi.org/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. https://doi.org/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 = {Tue Jun 26 00:00:00 EDT 2018},
month = {Tue Jun 26 00:00:00 EDT 2018}
}
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https://doi.org/10.1088/1361-6587/aaca0b
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Cited by: 12 works
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Works referencing / citing this record:
Nernst thermomagnetic waves in magnetized high energy density plasmas
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