Validation of gyro-kinetic predictions of TEM-driven electron transport against JET experiments (Abstract/Poster in atti di convegno)

Type
Label
  • Validation of gyro-kinetic predictions of TEM-driven electron transport against JET experiments (Abstract/Poster in atti di convegno) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Alternative label
  • P. Mantica (1); N. Bonanomi (1,2); G. Szepesi (1); N. Hawkes (3); E. Lerche (4); P. Migliano (5); A. Peeters (5); C. Sozzi (1); M. Tsalas (6); D. Van Eester4 and JET Contributors*! (2014)
    Validation of gyro-kinetic predictions of TEM-driven electron transport against JET experiments
    in 19th Joint EU-US Transport Task Force Meeting, Culham, UK, September 2014
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • P. Mantica (1); N. Bonanomi (1,2); G. Szepesi (1); N. Hawkes (3); E. Lerche (4); P. Migliano (5); A. Peeters (5); C. Sozzi (1); M. Tsalas (6); D. Van Eester4 and JET Contributors*! (literal)
Note
  • Poster (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) Istituto di Fisica del Plasma ''P. Caldirola,'' ENEA-CNR, Milano, Italy!; 2) Università degli Studi di Milano Bicocca, Milano, Italy!; 3) CCFE, Culham Science Centre, Abingdon, OX14 3DB, UK!; 4) LPP-ERM/KMS, TEC partner, Brussels, Belgium!; (literal)
Titolo
  • Validation of gyro-kinetic predictions of TEM-driven electron transport against JET experiments (literal)
Abstract
  • A main drive for electron heat transport in tokamaks is the Trapped Electron Mode (TEM) instability. This work explores the parametric dependencies of TEM threshold and stiffness both experimentally in JET C-wall L-mode plasmas and theoretically by linear and non-linear gyro-kinetic simulations using GKW[1]. Stabilizing effects of the magnetic shear s and collisionality are foreseen by theory and evidenced also in the JET experiments, whilst a weaker destabilizing effect of R/Ln could not be isolated in experiments due to strong coupling between R/Ln and s. No effects of q and Te/Ti were found. Good agreement between the experimental and theory predicted stiffness level has been found. An increase of R/LTi in presence of significant ion heating results in a reduction of R/LTe, in part due to increased electron stiffness and in part to additional electron transport via the ITG channel.! (literal)
Prodotto di
Autore CNR

Incoming links:


Prodotto
Autore CNR di
data.CNR.it