Schworer, David, Walkden, Nicholas Ross, Dudson, Benjamin Daniel orcid.org/0000-0002-0094-4867 et al. (3 more authors) (2020) Dynamics of scrape-off layer filaments in detached conditions. Nuclear Fusion. 126047. ISSN 1741-4326
Abstract
The here presented work studies the dynamics of filaments using 3D fluid simulations in the presence of detached background profiles. It was found that evolving the neutrals on the time-scale of the filament did not have a significant impact on the dynamics of the filament. In general a decreasing filament velocity with increasing plasma background density has been observed, with the exception of detachment onset, where a temporarily increase in radial velocity occurs. The decreasing trend with temporary increase was found for filaments around the critical size and larger, while smaller filaments where less affected by detachment. With detachment the critical filament size increased, as larger filaments were faster in detached conditions. This breaks the trend of attached conditions, where the critical size decreases with increasing density.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © EURATOM 2020. 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. |
Dates: |
|
Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 15 Apr 2020 11:20 |
Last Modified: | 16 Oct 2024 16:31 |
Published Version: | https://doi.org/10.1088/1741-4326/ab8776 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1741-4326/ab8776 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:159471 |