Simulations of peelingballooning modes with electron cyclotron resonance heating
Abstract
The effects of the deposited power and deposited position of Electron Cyclotron Resonance Heating (ECRH) on PeelingBallooning (PB) modes are simulated using BOUT++ code in this paper. The simulation results show that as the deposited position moves from the top to the bottom of the pedestal, the edge localized mode (ELM) size decreases first and then increases, finally decreases again. For ECRH with different deposited power, the effects on PB modes are similar if they have the same peak value of the power deposition profile. These results show that the effects of ECRH on PB modes are primarily determined by the change in pressure profile caused by ECRH. As long as ECRH can lead to large enough change in pressure profile, ECRH can efficiently affect the dynamics of PB modes.
 Authors:
 College of Physical Science and Technology, Sichuan University, Chengdu 610065 (China)
 (China)
 Publication Date:
 OSTI Identifier:
 22600087
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Physics of Plasmas; Journal Volume: 23; Journal Issue: 5; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; B CODES; BALLOONING INSTABILITY; COMPUTERIZED SIMULATION; DEPOSITION; DEPOSITS; ECR HEATING; EDGE LOCALIZED MODES; ELECTRON CYCLOTRONRESONANCE
Citation Formats
Huang, J., Tang, C. J., Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064, Chen, S. Y., Email: sychen531@163.com, Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064, and Southwestern Institute of Physics, Chengdu 610041. Simulations of peelingballooning modes with electron cyclotron resonance heating. United States: N. p., 2016.
Web. doi:10.1063/1.4948482.
Huang, J., Tang, C. J., Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064, Chen, S. Y., Email: sychen531@163.com, Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064, & Southwestern Institute of Physics, Chengdu 610041. Simulations of peelingballooning modes with electron cyclotron resonance heating. United States. doi:10.1063/1.4948482.
Huang, J., Tang, C. J., Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064, Chen, S. Y., Email: sychen531@163.com, Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064, and Southwestern Institute of Physics, Chengdu 610041. 2016.
"Simulations of peelingballooning modes with electron cyclotron resonance heating". United States.
doi:10.1063/1.4948482.
@article{osti_22600087,
title = {Simulations of peelingballooning modes with electron cyclotron resonance heating},
author = {Huang, J. and Tang, C. J. and Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064 and Chen, S. Y., Email: sychen531@163.com and Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064 and Southwestern Institute of Physics, Chengdu 610041},
abstractNote = {The effects of the deposited power and deposited position of Electron Cyclotron Resonance Heating (ECRH) on PeelingBallooning (PB) modes are simulated using BOUT++ code in this paper. The simulation results show that as the deposited position moves from the top to the bottom of the pedestal, the edge localized mode (ELM) size decreases first and then increases, finally decreases again. For ECRH with different deposited power, the effects on PB modes are similar if they have the same peak value of the power deposition profile. These results show that the effects of ECRH on PB modes are primarily determined by the change in pressure profile caused by ECRH. As long as ECRH can lead to large enough change in pressure profile, ECRH can efficiently affect the dynamics of PB modes.},
doi = {10.1063/1.4948482},
journal = {Physics of Plasmas},
number = 5,
volume = 23,
place = {United States},
year = 2016,
month = 5
}

A minimum set of equations based on the peelingballooning (PB) model with nonideal physics effects (diamagnetic drift, E×B drift, resistivity, and anomalous electron viscosity) is found to simulate pedestal collapse when using the new BOUT++ simulation code, developed in part from the original fluid edge code BOUT. Nonlinear simulations of PB modes demonstrate that the PB modes trigger magnetic reconnection, which leads to the pedestal collapse. With the addition of a model of the anomalous electron viscosity under the assumption that the electron viscosity is comparable to the anomalous electron thermal diffusivity, it is found from simulations using a realisticmore »Cited by 51

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