Electromagnetic effects on dynamics of high-beta filamentary structures
Abstract
The impacts of the electromagnetic effects on blob dynamics are considered. Electromagnetic BOUT++ simulations on seeded high-beta blobs demonstrate that inhomogeneity of magnetic curvature or plasma pressure along the filament leads to bending of the blob filaments and the magnetic field lines due to increased propagation time of plasma current (Alfvén time). The bending motion can enhance heat exchange between the plasma facing materials and the inner SOL region. The effects of sheath boundary conditions on the part of the blob away from the boundary are also diminished by the increased Alfvén time. Using linear analysis and the BOUT++ simulation, it is found that electromagnetic effects in high temperature and high density plasmas reduce the growth rate of resistive drift wave turbulence when resistivity drops below some certain value. Lastly, in the course of blobs motion in the SOL its temperature is reduced, which leads to enhancement of resistive effects, so the blob can switch from electromagnetic to electrostatic regime, where resistive drift wave turbulence become important.
- Authors:
-
- Univ. of California San Diego, La Jolla, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Naval Research Lab. (NRL), Washington, DC (United States)
- Publication Date:
- Research Org.:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES); Kwanjeong Educational Foundation
- OSTI Identifier:
- 1305840
- Alternate Identifier(s):
- OSTI ID: 1228483
- Report Number(s):
- LLNL-JRNL-698417
Journal ID: ISSN 1070-664X; PHPAEN
- Grant/Contract Number:
- AC52-07NA27344; FG02-04ER54739; SC0010413; AC02-05CH11231
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 22; Journal Issue: 1; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Magnetic fields; Plasma blobs; Plasma temperature; Drift waves; Electrostatic waves
Citation Formats
Lee, Wonjae, Umansky, Maxim V., Angus, J. R., and Krasheninnikov, Sergei I. Electromagnetic effects on dynamics of high-beta filamentary structures. United States: N. p., 2015.
Web. doi:10.1063/1.4905639.
Lee, Wonjae, Umansky, Maxim V., Angus, J. R., & Krasheninnikov, Sergei I. Electromagnetic effects on dynamics of high-beta filamentary structures. United States. https://doi.org/10.1063/1.4905639
Lee, Wonjae, Umansky, Maxim V., Angus, J. R., and Krasheninnikov, Sergei I. 2015.
"Electromagnetic effects on dynamics of high-beta filamentary structures". United States. https://doi.org/10.1063/1.4905639. https://www.osti.gov/servlets/purl/1305840.
@article{osti_1305840,
title = {Electromagnetic effects on dynamics of high-beta filamentary structures},
author = {Lee, Wonjae and Umansky, Maxim V. and Angus, J. R. and Krasheninnikov, Sergei I.},
abstractNote = {The impacts of the electromagnetic effects on blob dynamics are considered. Electromagnetic BOUT++ simulations on seeded high-beta blobs demonstrate that inhomogeneity of magnetic curvature or plasma pressure along the filament leads to bending of the blob filaments and the magnetic field lines due to increased propagation time of plasma current (Alfvén time). The bending motion can enhance heat exchange between the plasma facing materials and the inner SOL region. The effects of sheath boundary conditions on the part of the blob away from the boundary are also diminished by the increased Alfvén time. Using linear analysis and the BOUT++ simulation, it is found that electromagnetic effects in high temperature and high density plasmas reduce the growth rate of resistive drift wave turbulence when resistivity drops below some certain value. Lastly, in the course of blobs motion in the SOL its temperature is reduced, which leads to enhancement of resistive effects, so the blob can switch from electromagnetic to electrostatic regime, where resistive drift wave turbulence become important.},
doi = {10.1063/1.4905639},
url = {https://www.osti.gov/biblio/1305840},
journal = {Physics of Plasmas},
issn = {1070-664X},
number = 1,
volume = 22,
place = {United States},
year = {Mon Jan 12 00:00:00 EST 2015},
month = {Mon Jan 12 00:00:00 EST 2015}
}
Web of Science
Works referenced in this record:
Direct Observation of Current in Type-I Edge-Localized-Mode Filaments on the ASDEX Upgrade Tokamak
journal, March 2011
- Vianello, N.; Naulin, V.; Schrittwieser, R.
- Physical Review Letters, Vol. 106, Issue 12
BOUT++: A framework for parallel plasma fluid simulations
journal, September 2009
- Dudson, B. D.; Umansky, M. V.; Xu, X. Q.
- Computer Physics Communications, Vol. 180, Issue 9
Modeling of large amplitude plasma blobs in three-dimensions
journal, January 2014
- Angus, Justin R.; Umansky, Maxim V.
- Physics of Plasmas, Vol. 21, Issue 1
Magnetic signature of current carrying edge localized modes filaments on the Joint European Torus tokamak
journal, July 2010
- Migliucci, P.; Naulin, V.
- Physics of Plasmas, Vol. 17, Issue 7
Filament velocity scaling laws for warm ions
journal, October 2013
- Manz, P.; Carralero, D.; Birkenmeier, G.
- Physics of Plasmas, Vol. 20, Issue 10
Blob current structures in TORPEX plasmas: experimental measurements and numerical simulations
journal, November 2011
- Furno, I.; Theiler, C.; Lançon, D.
- Plasma Physics and Controlled Fusion, Vol. 53, Issue 12
Current carrying blob filaments and edge-localized-mode dynamics
journal, October 2007
- Myra, J. R.
- Physics of Plasmas, Vol. 14, Issue 10
Edge instability regimes with applications to blob transport and the quasicoherent mode
journal, September 2005
- Myra, J. R.; D’Ippolito, D. A.
- Physics of Plasmas, Vol. 12, Issue 9
Effects of the parallel electron dynamics and finite ion temperature on the plasma blob propagation in the scrape-off layer
journal, November 2008
- Jovanović, D.; Shukla, P. K.; Pegoraro, F.
- Physics of Plasmas, Vol. 15, Issue 11
Simulation of plasma turbulence in scrape-off layer conditions: the GBS code, simulation results and code validation
journal, November 2012
- Ricci, P.; Halpern, F. D.; Jolliet, S.
- Plasma Physics and Controlled Fusion, Vol. 54, Issue 12
Recent theoretical progress in understanding coherent structures in edge and SOL turbulence
journal, October 2008
- Krasheninnikov, S. I.; D'Ippolito, D. A.; Myra, J. R.
- Journal of Plasma Physics, Vol. 74, Issue 5
Inviscid evolution of large amplitude filaments in a uniform gravity field
journal, November 2014
- Angus, J. R.; Krasheninnikov, S. I.
- Physics of Plasmas, Vol. 21, Issue 11
On scrape off layer plasma transport
journal, May 2001
- Krasheninnikov, S. I.
- Physics Letters A, Vol. 283, Issue 5-6
Intermittent convective transport carried by propagating electromagnetic filamentary structures in nonuniformly magnetized plasma
journal, February 2010
- Xu, G. S.; Naulin, V.; Fundamenski, W.
- Physics of Plasmas, Vol. 17, Issue 2
Status and verification of edge plasma turbulence code BOUT
journal, June 2009
- Umansky, M. V.; Xu, X. Q.; Dudson, B.
- Computer Physics Communications, Vol. 180, Issue 6
Low-to-high confinement transition simulations in divertor geometry
journal, May 2000
- Xu, X. Q.; Cohen, R. H.; Rognlien, T. D.
- Physics of Plasmas, Vol. 7, Issue 5
ITER divertor performance in the low-activation phase
journal, November 2013
- Kukushkin, A. S.; Pacher, H. D.; Kotov, V.
- Nuclear Fusion, Vol. 53, Issue 12
Simulations of drift resistive ballooning L-mode turbulence in the edge plasma of the DIII-D tokamak
journal, May 2013
- Cohen, B. I.; Umansky, M. V.; Nevins, W. M.
- Physics of Plasmas, Vol. 20, Issue 5
Convective transport by intermittent blob-filaments: Comparison of theory and experiment
journal, June 2011
- D’Ippolito, D. A.; Myra, J. R.; Zweben, S. J.
- Physics of Plasmas, Vol. 18, Issue 6
Effects of parallel electron dynamics on plasma blob transport
journal, August 2012
- Angus, Justin R.; Krasheninnikov, Sergei I.; Umansky, Maxim V.
- Physics of Plasmas, Vol. 19, Issue 8
Filament structures at the plasma edge on MAST
journal, November 2006
- Kirk, A.; Ayed, N. Ben; Counsell, G.
- Plasma Physics and Controlled Fusion, Vol. 48, Issue 12B
Works referencing / citing this record:
Electromagnetic Viscous-Resistive-Drift-Wave Instability in Burning Plasma
journal, May 2019
- Rehman, Umer
- Journal of Fusion Energy, Vol. 38, Issue 5-6
Two-fluid MHD regime of resistive drift-wave instability
journal, September 2018
- Yang, Shangchuan; Zhu, Ping; Xie, Jinlin
- Physics of Plasmas, Vol. 25, Issue 9
Stability of scrape-off layer plasma: A modified Rayleigh–Bénard problem
journal, February 2019
- Wilczynski, F.; Hughes, D. W.; Van Loo, S.
- Physics of Plasmas, Vol. 26, Issue 2
Interpretation of scrape-off layer profile evolution and first-wall ion flux statistics on JET using a stochastic framework based on fillamentary motion
journal, June 2017
- Walkden, N. R.; Wynn, A.; Militello, F.
- Plasma Physics and Controlled Fusion, Vol. 59, Issue 8
Dynamics of scrape-off layer filaments in high β plasmas
journal, September 2019
- Hoare, D.; Militello, F.; Omotani, J. T.
- Plasma Physics and Controlled Fusion, Vol. 61, Issue 10
Interpretation of scrape-off layer profile evolution and first-wall ion flux statistics on JET using a stochastic framework based on filamentary motion
text, January 2017
- Walkden, N. R.; Wynn, A.; Militello, F.
- arXiv