Dudson, Benjamin Daniel orcid.org/0000-0002-0094-4867 and Leddy, Jarrod (2017) Hermes : global plasma edge fluid turbulence simulations. Plasma Physics and Controlled Fusion. 054010. ISSN 1361-6587
Abstract
The transport of heat and particles in the relatively collisional edge regions of magnetically confined plasmas is a scientifically challenging and technologically important problem. Understanding and predicting this transport requires the self-consistent evolution of plasma fluctuations, global profiles and flows, but the numerical tools capable of doing this in realistic (diverted) geometry are only now being developed. Here a 5-field reduced 2-fluid plasma model for the study of instabilities and turbulence in magnetised plasmas is presented, built on the BOUT++ framework. This cold ion model allows the evolution of global profiles, electric fields and flows on transport timescales, with flux-driven cross-field transport determined self-consistently by electromagnetic turbulence. Developments in the model formulation and numerical implementation are described, and simulations are performed in poloidally limited and diverted tokamak configurations.
Metadata
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Copyright, Publisher and Additional Information: | © 2017 EUROfusion University of York. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details | ||||||
Keywords: | numerical methods, plasma turbulence, tokamak edge | ||||||
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Institution: | The University of York | ||||||
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) | ||||||
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Depositing User: | Pure (York) | ||||||
Date Deposited: | 02 Mar 2017 11:00 | ||||||
Last Modified: | 31 Jan 2024 00:29 | ||||||
Published Version: | https://doi.org/10.1088/1361-6587/aa63d2 | ||||||
Status: | Published | ||||||
Refereed: | Yes | ||||||
Identification Number: | https://doi.org/10.1088/1361-6587/aa63d2 | ||||||
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