Simulations of reversed shear Alfvén eigenmodes in fusion plasmas: performed by gyrokinetic particle-in-cell approach - Couverture souple

Deng, Wenjun

 
9783659168864: Simulations of reversed shear Alfvén eigenmodes in fusion plasmas: performed by gyrokinetic particle-in-cell approach
Couverture souple
ISBN 10 : 3659168866 ISBN 13 : 9783659168864
Editeur : LAP Lambert Academic Publishing, 2012

Synopsis

In fusion plasmas, generated from heating sources or fusion products, energetic particles can excite Alfvén eigenmodes, which undermines energetic particle confinement. To reduce or avoid this problem, behaviors of energetic particles and Alfvén eigenmodes need to be studied in detail. In this book, a nonlinear gyrokinetic simulation model, which recovers the ideal magnetohydrodynamic (MHD) theory in the linear long-wavelength regime, is formulated for studying kinetic MHD processes in magnetized plasmas. This comprehensive formulation enables gyrokinetic simulation of both pressure gradient-driven and current-driven instabilities including ideal and kinetic ballooning modes, kink modes, and shear Alfvén waves, as well as their nonlinear interactions in multi-scale simulations. Implemented in the gyrokinetic toroidal code (GTC), the new formulation is verified in simulations of reversed shear Alfvén eigenmode (RSAE). The verified model is then applied to studying the linear properties of RSAE driven by density gradient of neutral beam injected fast ions in a well-diagnosed DIII-D tokamak experiment.

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À propos de l?auteur

Wenjun Deng is currently an Associate Research Physicist at Princeton Plasma Physics Laboratory. His research interests are in the area of fusion plasma modeling and large scale computer simulation. He obtained his B.S. from University of Science and Technology of China in 2006 and his Ph.D. from University of California, Irvine in 2012.

Les informations fournies dans la section « A propos du livre » peuvent faire référence à une autre édition de ce titre.

Éditeur
LAP Lambert Academic Publishing
Date d'édition
2012
Langue
anglais
ISBN 10 
3659168866
ISBN 13 
9783659168864
Reliure
Broché
Nombre de pages
148
Coordonnées du fabricant
non disponible
Personne responsable
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