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Linking Edge Flows to the Magnetic Geometry Asymmetry in Tokamaks

  • the WEST team
  • , The EUROfusion Tokamak Exploitation Team
  • , the TCV team
  • Sorbonne Université
  • ENAC-IIC-GEL
  • KTH Royal Institute of Technology
  • Consorzio Rfx
  • CEA Cadarache

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

The edge Er × B flow has been characterized on TCV for a series of discharges in favorable and unfavorable magnetic topologies. The asymmetry in Er previously observed on AUG and WEST is recovered, with a shallower well when B ×∇B is in the unfavorable direction for H-mode access. On TCV, the Er structure is found to vary with the plasma current only towards high values (regardless of topology). The well is shallower at high current, in qualitative contrast to results from WEST. The evolution of Er approaching the L-H transition reveals a marked increase of the inner shear in Fav.

Original languageEnglish
Title of host publication50th EPS Conference on Plasma Physics, EPS 2024
EditorsJ. Kirk, L. Volpe
PublisherEuropean Physical Society (EPS)
ISBN (Electronic)9798331305239
Publication statusPublished - 1 Jan 2024
Event50th EPS Conference on Plasma Physics, EPS 2024 - Salamanca, Spain
Duration: 8 Jul 202412 Jul 2024

Publication series

Name50th EPS Conference on Plasma Physics, EPS 2024

Conference

Conference50th EPS Conference on Plasma Physics, EPS 2024
Country/TerritorySpain
CitySalamanca
Period8/07/2412/07/24

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