Numerical simulation of Li pellet ablation in the H-mode pedestal region

Jizhong Sun; Lijun Liu; Zhen Sun; Mao Li; Nami Li; Dezhen Wang

doi:10.1016/j.fusengdes.2018.04.017

Numerical simulation of Li pellet ablation in the H-mode pedestal region

Jizhong Sun
, Lijun Liu
, Zhen Sun
, Mao Li
, Nami Li
, Dezhen Wang

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The use of non-fuel pellets is desirable for ITER due to its decoupling ELM pacing from fueling. In this paper, the Neutral Gas Shielding Model (Parks et al., Nucl, Fusion 34(1994)417) has been applied to the ablation of Li pellets in the H-mode pedestal region. The results show that the injection velocity of pellets is a more convenient parameter for one to control the deposition profile and location of the injected species in the pedestal. The information obtained from this work can further be used as input for fluid transport codes to track the trajectories of the impurity species or as input for advanced MHD codes for better understanding the non-linear destabilization of ELMs.

Original language	English (US)
Pages (from-to)	834-838
Number of pages	5
Journal	Fusion Engineering and Design
Volume	136
DOIs	https://doi.org/10.1016/j.fusengdes.2018.04.017
State	Published - Nov 2018
Externally published	Yes

All Science Journal Classification (ASJC) codes

Civil and Structural Engineering
Nuclear Energy and Engineering
General Materials Science
Mechanical Engineering

Keywords

Ablation
H-mode
Lithium pellet
Pedestal
Simulation

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10.1016/j.fusengdes.2018.04.017

Cite this

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title = "Numerical simulation of Li pellet ablation in the H-mode pedestal region",

abstract = "The use of non-fuel pellets is desirable for ITER due to its decoupling ELM pacing from fueling. In this paper, the Neutral Gas Shielding Model (Parks et al., Nucl, Fusion 34(1994)417) has been applied to the ablation of Li pellets in the H-mode pedestal region. The results show that the injection velocity of pellets is a more convenient parameter for one to control the deposition profile and location of the injected species in the pedestal. The information obtained from this work can further be used as input for fluid transport codes to track the trajectories of the impurity species or as input for advanced MHD codes for better understanding the non-linear destabilization of ELMs.",

keywords = "Ablation, H-mode, Lithium pellet, Pedestal, Simulation",

author = "Jizhong Sun and Lijun Liu and Zhen Sun and Mao Li and Nami Li and Dezhen Wang",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = nov,

doi = "10.1016/j.fusengdes.2018.04.017",

language = "English (US)",

volume = "136",

pages = "834--838",

journal = "Fusion Engineering and Design",

issn = "0920-3796",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Numerical simulation of Li pellet ablation in the H-mode pedestal region

AU - Sun, Jizhong

AU - Liu, Lijun

AU - Sun, Zhen

AU - Li, Mao

AU - Li, Nami

AU - Wang, Dezhen

PY - 2018/11

Y1 - 2018/11

N2 - The use of non-fuel pellets is desirable for ITER due to its decoupling ELM pacing from fueling. In this paper, the Neutral Gas Shielding Model (Parks et al., Nucl, Fusion 34(1994)417) has been applied to the ablation of Li pellets in the H-mode pedestal region. The results show that the injection velocity of pellets is a more convenient parameter for one to control the deposition profile and location of the injected species in the pedestal. The information obtained from this work can further be used as input for fluid transport codes to track the trajectories of the impurity species or as input for advanced MHD codes for better understanding the non-linear destabilization of ELMs.

AB - The use of non-fuel pellets is desirable for ITER due to its decoupling ELM pacing from fueling. In this paper, the Neutral Gas Shielding Model (Parks et al., Nucl, Fusion 34(1994)417) has been applied to the ablation of Li pellets in the H-mode pedestal region. The results show that the injection velocity of pellets is a more convenient parameter for one to control the deposition profile and location of the injected species in the pedestal. The information obtained from this work can further be used as input for fluid transport codes to track the trajectories of the impurity species or as input for advanced MHD codes for better understanding the non-linear destabilization of ELMs.

KW - Ablation

KW - H-mode

KW - Lithium pellet

KW - Pedestal

KW - Simulation

UR - https://www.scopus.com/pages/publications/85045479718

UR - https://www.scopus.com/pages/publications/85045479718#tab=citedBy

U2 - 10.1016/j.fusengdes.2018.04.017

DO - 10.1016/j.fusengdes.2018.04.017

M3 - Article

AN - SCOPUS:85045479718

SN - 0920-3796

VL - 136

SP - 834

EP - 838

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

ER -

Numerical simulation of Li pellet ablation in the H-mode pedestal region

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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