Bringing global gyrokinetic turbulence simulations to the transport timescale using a multiscale approach
Abstract
The vast separation dividing the characteristic times of energy confinement and turbulence in the core of toroidal plasmas makes first-principles prediction on long timescales extremely challenging. Here in this work, we report the demonstration of a multiple-timescale method that enables coupling global gyrokinetic simulations with a transport solver to calculate the evolution of the self-consistent temperature profile. This method, which exhibits resiliency to the intrinsic fluctuations arising in turbulence simulations, holds potential for integrating nonlocal gyrokinetic turbulence simulations into predictive, whole-device models.
- Authors:
-
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Max-Planck-Institut für Plasmaphysik, Garching (Germany)
- Univ. of California, Los Angeles, CA (United States)
- Max-Planck-Institut für Plasmaphysik, Garching (Germany); Univ. of California, Los Angeles, CA (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC)
- OSTI Identifier:
- 1458659
- Report Number(s):
- LLNL-JRNL-734141
Journal ID: ISSN 0029-5515; 886124; TRN: US1901494
- Grant/Contract Number:
- AC52-07NA27344; AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Fusion
- Additional Journal Information:
- Journal Volume: 58; Journal Issue: 5; Journal ID: ISSN 0029-5515
- Publisher:
- IOP Science
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Parker, Jeffrey B., LoDestro, Lynda L., Told, Daniel, Merlo, Gabriele, Ricketson, Lee F., Campos, Alejandro, Jenko, Frank, and Hittinger, Jeffrey A. F. Bringing global gyrokinetic turbulence simulations to the transport timescale using a multiscale approach. United States: N. p., 2018.
Web. doi:10.1088/1741-4326/aab5c8.
Parker, Jeffrey B., LoDestro, Lynda L., Told, Daniel, Merlo, Gabriele, Ricketson, Lee F., Campos, Alejandro, Jenko, Frank, & Hittinger, Jeffrey A. F. Bringing global gyrokinetic turbulence simulations to the transport timescale using a multiscale approach. United States. https://doi.org/10.1088/1741-4326/aab5c8
Parker, Jeffrey B., LoDestro, Lynda L., Told, Daniel, Merlo, Gabriele, Ricketson, Lee F., Campos, Alejandro, Jenko, Frank, and Hittinger, Jeffrey A. F. Mon .
"Bringing global gyrokinetic turbulence simulations to the transport timescale using a multiscale approach". United States. https://doi.org/10.1088/1741-4326/aab5c8. https://www.osti.gov/servlets/purl/1458659.
@article{osti_1458659,
title = {Bringing global gyrokinetic turbulence simulations to the transport timescale using a multiscale approach},
author = {Parker, Jeffrey B. and LoDestro, Lynda L. and Told, Daniel and Merlo, Gabriele and Ricketson, Lee F. and Campos, Alejandro and Jenko, Frank and Hittinger, Jeffrey A. F.},
abstractNote = {The vast separation dividing the characteristic times of energy confinement and turbulence in the core of toroidal plasmas makes first-principles prediction on long timescales extremely challenging. Here in this work, we report the demonstration of a multiple-timescale method that enables coupling global gyrokinetic simulations with a transport solver to calculate the evolution of the self-consistent temperature profile. This method, which exhibits resiliency to the intrinsic fluctuations arising in turbulence simulations, holds potential for integrating nonlocal gyrokinetic turbulence simulations into predictive, whole-device models.},
doi = {10.1088/1741-4326/aab5c8},
journal = {Nuclear Fusion},
number = 5,
volume = 58,
place = {United States},
year = {Mon Mar 12 00:00:00 EDT 2018},
month = {Mon Mar 12 00:00:00 EDT 2018}
}
Web of Science
Figures / Tables:
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Works referencing / citing this record:
Investigation of a Multiple-Timescale Turbulence-Transport Coupling Method in the Presence of Random Fluctuations
journal, July 2018
- Parker, Jeffrey; LoDestro, Lynda; Campos, Alejandro
- Plasma, Vol. 1, Issue 1
Investigation of a Multiple-Timescale Turbulence-Transport Coupling Method in the Presence of Random Fluctuations
text, January 2018
- Parker, Jeffrey B.; LoDestro, Lynda L.; Campos, Alejandro
- arXiv
Figures / Tables found in this record: