Modeling of lithium granule injection in NSTX with M3D-C1

A. Fil, E. Kolemen, A. Bortolon, N. Ferraro, S. Jardin, P. B. Parks, R. Lunsford, R. Maingi

Research output: Contribution to journalArticlepeer-review

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Abstract

In this paper we present initial simulations of pedestal control by Lithium Granule Injection (LGI) in NSTX. A model for small granule ablation has been implemented in the M3D-C1 code [1], allowing the simulation of realistic Lithium granule injections. 2D simulations in NSTX L-mode and H-mode plasmas are done and the effect of granule size, injection angle and velocity on the pedestal gradient increase are studied. For H-mode cases, the amplitude of the local pressure perturbation caused by the granules is highly dependent on the solid granule size. In our simulations, reducing the granule injection velocity allows one to inject more particles at the pedestal top.

Original languageEnglish (US)
Pages (from-to)1094-1099
Number of pages6
JournalNuclear Materials and Energy
Volume12
DOIs
StatePublished - Aug 2017

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Materials Science (miscellaneous)
  • Nuclear Energy and Engineering

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