Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Conferences, Workshops, Symposiums, and Seminars
  4. Heavy impurity transport in tokamaks with plasma flows and saturated 3D perturbations
 
conference paper

Heavy impurity transport in tokamaks with plasma flows and saturated 3D perturbations

Lascas Neto, Eduardo José  
•
Graves, Jonathan  
•
Raghunathan, Madhusudan  
Show more
2019
46th EPS Conference on Plasma Physics [Conference abstracts]
The 46th EPS Conference on Plasma Physics

Observations in JET hybrid scenarios show that early termination of the plasma can be caused by tungsten accumulation events, sometimes preceded by large living MHD perturbations [1]. Only recent investigations have been made into understanding the effects of 3D background rotation profiles and 3D MHD equilibria on the transport of heavy impurities. The VENUS- LEVIS PIC code [2] has been used to follow heavy impurities in the presence of a 1/1 kink saturated 3D MHD equilibrium and strong toroidal rotation [3]. In the present work, a now self- consistent treatment of the same problem is pursued. An implementation of the 3D centrifugal effects and 3D electrostatic potential correction on the VENUS-LEVIS code, based on the neo- classical 3D flow theory in [4] and the guiding center theory in [5], is presented. The code is used to follow heavy impurities on a 3D magnetic geommetry with 3D centrifugal effects, in order to understand how these 3D neoclassical effects will affect the overall neoclassical trans- port of heavy impurities. In particular, we focus our study on a saturated 1/1 internal kink mode as it has been seen in experiments that a correlation between this 3D magnetic structure and the inward flux of heavy impurities may exist. Simulations are performed to study this phenomena in both high (Pfirsch-Schlüter) and low (banana) collisionality regimes for the background ions in order to understand the impact of the saturated 1/1 internal kink mode on the peaking of tungsten distributions in JET hybrid scenarios exhibiting continuous 1/1 activity.

  • Details
  • Metrics
Type
conference paper
Author(s)
Lascas Neto, Eduardo José  
Graves, Jonathan  
Raghunathan, Madhusudan  
Lanthaler, Samuel  
Cooper, Wilfred Anthony  
Sommariva, Cristian  
Corporate authors
JET contributors
Date Issued

2019

Publisher

European Physical Society

Publisher place

Mulhouse, France

Published in
46th EPS Conference on Plasma Physics [Conference abstracts]
ISBN of the book

978-1-5108-9470-9

Total of pages

4

Series title/Series vol.

Europhysics Conference Abstracts; 43C

Start page

P2.1082

URL

Online proceedings

http://ocs.ciemat.es/EPS2019PAP/html/contrib.html
Editorial or Peer reviewed

NON-REVIEWED

Written at

EPFL

EPFL units
SPC  
Event nameEvent placeEvent date
The 46th EPS Conference on Plasma Physics

Milan, Italy

July 8 - 12, 2019

Available on Infoscience
March 10, 2020
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/167168
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés