Zhang, Wei, Cziegler, Istvan orcid.org/0000-0003-1040-8918, Bobkov, V et al. (8 more authors) (2019) Blob distortion by radio-frequency induced sheared flow. Nuclear Fusion. 074001. ISSN 1741-4326
Abstract
Blob transport properties in the plasma edge in the presence and absence of radio-frequency (RF) convective cells are compared. For the first time, the interactions between RF convective cells and intermittent plasma blobs in the scrape-off layer (SOL) are observed with gas puff imaging in the ASDEX Upgrade tokamak. It is found that the RF convective cells induce a sheared flow in the far SOL, which is able to stretch, distort and even split the blobs poloidally. The observed phenomena indicate that an externally generated sheared flow in the SOL can be considered as a method to modify blob transport in a favorable way.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © EURATOM 2019. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. |
Keywords: | Blob,Radio-frequency,Scrape-off layer,Sheared flow |
Dates: |
|
Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 12 Jun 2019 10:40 |
Last Modified: | 16 Oct 2024 15:39 |
Published Version: | https://doi.org/10.1088/1741-4326/ab1f1a |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1088/1741-4326/ab1f1a |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:147258 |
Download
Filename: convective_cells_blob_zhang_v16.pdf
Description: convective_cells&blob_zhang_v16
Licence: CC-BY-NC-ND 2.5