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Title: Simulation of peeling-ballooning modes with pellet injection

The influence of pellet ablation on the evolution of peeling-ballooning (P-B) modes is studied with BOUT++ code. The atoms coming from pellet ablation can significantly reshape the plasma pressure profile, so the behaviors of P-B modes and edge localized mode (ELM) are modified dramatically. This paper shows that the energy loss associated with an ELM increases substantially over that without the pellet, if the pellet is deposited at the top of the pedestal. On the contrary, for pellet deposition in the middle of the pedestal region the ELM energy loss can be less.
Authors:
 [1] ;  [2] ;  [2] ; ; ;  [1] ;  [2] ;  [3]
  1. College of Physical Science and Technology, Sichuan University, 610064 Chengdu (China)
  2. (China)
  3. Southwestern Institute of Physics, Chengdu 610041 (China)
Publication Date:
OSTI Identifier:
22403273
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 11; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ABLATION; BALLOONING INSTABILITY; DEPOSITION; EDGE LOCALIZED MODES; ENERGY LOSSES; PELLET INJECTION; PELLETS; PLASMA PRESSURE; SIMULATION