3D adaptive mesh refinement simulations of pellet injection in tokamaks

Ravindra Samtaney*, S. C. Jardin, P. Colella, D. F. Martin

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

19 Scopus citations

Abstract

We present results of Adaptive Mesh Refinement (AMR) simulations of the pellet injection process, a proven method of refueling tokamaks. AMR is a computationally efficient way to provide the resolution required to simulate realistic pellet sizes relative to device dimensions. The mathematical model comprises of single-fluid MHD equations with source terms in the continuity equation along with a pellet ablation rate model. The numerical method developed is an explicit unsplit upwinding treatment of the 8-wave formulation, coupled with a MAC projection method to enforce the solenoidal property of the magnetic field. The Chombo framework is used for AMR. The role of the E × B drift in mass redistribution during inside and outside pellet injections is emphasized.

Original languageEnglish (US)
Pages (from-to)220-228
Number of pages9
JournalComputer Physics Communications
Volume164
Issue number1-3
DOIs
StatePublished - Dec 1 2004
EventProceedings of the 18th International Conference - Falmouth, United States
Duration: Sep 7 2003Sep 10 2003

Keywords

  • Adaptive Mesh Refinement
  • MHD
  • Pellet injection

ASJC Scopus subject areas

  • Hardware and Architecture
  • Physics and Astronomy(all)

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