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          Institute: MPI für Plasmaphysik     Collection: Articles, Books, Inbooks     Display Documents



  history
ID: 59832.0, MPI für Plasmaphysik / Articles, Books, Inbooks
Turbulent particle transport in magnetized plasmas
Authors:Garbet, X.; Garzotti, L.; Mantica, P.; Nordman, H.; Valovic, M.; Weisen, H.; Angioni, C.
Language:English
Date of Publication (YYYY-MM-DD):2003
Title of Journal:Physical Review Letters
Journal Abbrev.:Phys. Rev. Lett.
Volume:91
Sequence Number of Article:035001
Copyright:Copyright © 2003 The American Physical Society
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Particle transport in magnetized plasmas is investigated with a fluid model of drift wave turbulence. An analytical calculation shows that magnetic field curvature and
thermodiffusion drive an anomalous pinch. The curvature driven pinch velocity is consistent with the prediction of turbulence equipartition theory. The thermodiffusion
flux is found to be directed inward for a small ratio of electron to ion pressure gradient, and it reverses its sign when increasing this ratio. Numerical simulations
confirm that a turbulent particle pinch exists. It is mainly driven by curvature for equal ion and electron heat sources. The sign and relative weights of the curvature and thermodiffusion pinches are consistent with the analytical calculation.
Free Keywords:plasma turbulence; plasma transport processes; thermal diffusion; ion sources
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Plasmaphysik/TOK
External Affiliations:Association Euratom-CEA sur la Fusion, CEA Cadarache, 13108 St Paul-Lez-Durance, France; EURATOM-ENEA-CNR Association, Istituto Gas Ionizzati, Padova, Italy; Istituto di Fisica del Plasma CNR-EURATOM, via Cozzi 53, 20125 Milano, Italy; EFDA-JET, Culham Science Centre, Abingdon OX14 3DB, United Kingdom; EURATOM/UKAEA, Culham Science Centre, Abingdon OX14 3DB, United Kingdom; Association Euratom-Confédération Suisse, CRPP, EPFL, CH-1015 Lausanne, Switzerland
Identifiers:DOI:10.1103/PhysRevLett.91.035001
URL:http://ojps.aip.org/getpdf/servlet/GetPDFServlet?f...
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