dc.creator | Zhang, W. | es |
dc.creator | Jacquet, P. | es |
dc.creator | Lerche, E. | es |
dc.creator | Bilato, R. | es |
dc.creator | Bobkov, V. | es |
dc.creator | Jet Contributors | es |
dc.creator | García Muñoz, Manuel | es |
dc.date.accessioned | 2020-08-26T13:07:25Z | |
dc.date.available | 2020-08-26T13:07:25Z | |
dc.date.issued | 2017-05 | |
dc.identifier.citation | Zhang, W., Jacquet, P., Lerche, E., Bilato, R., Bobkov, V., Jet Contributors, y García Muñoz, M. (2017). 3D simulations of gas puff effects on edge plasma and ICRF coupling in JET. Nuclear Fusion, 57 (5), 056042-. | |
dc.identifier.issn | 1741-4326 | es |
dc.identifier.uri | https://hdl.handle.net/11441/100453 | |
dc.description.abstract | Recent JET (ITER-Like Wall) experiments have shown that the fueling gas puffed from
different locations of the vessel can result in different scrape-off layer (SOL) density profiles
and therefore different radio frequency (RF) coupling. To reproduce the experimental
observations, to understand the associated physics and to optimize the gas puff methods, we
have carried out three-dimensional (3D) simulations with the EMC3-EIRENE code in
JET-ILW including a realistic description of the vessel geometry and the gas injection
modules (GIMs) configuration. Various gas puffing methods have been investigated, in
which the location of gas fueling is the only variable parameter. The simulation results are in
quantitative agreement with the experimental measurements. They confirm that compared to
divertor gas fueling, mid-plane gas puffing increases the SOL density most significantly but
locally, while top gas puffing increases it uniformly in toroidal direction but to a lower degree.
Moreover, the present analysis corroborates the experimental findings that combined gas puff
scenarios—based on distributed main chamber gas puffing—can be effective in increasing the
RF coupling for multiple antennas simultaneously. The results indicate that the spreading of
the gas, the local ionization and the transport of the ionized gas along the magnetic field lines
connecting the local gas cloud in front of the GIMs to the antennas are responsible for the
enhanced SOL density and thus the larger RF coupling. | es |
dc.description.sponsorship | EURATOM 633053 | es |
dc.format | application/pdf | es |
dc.format.extent | 16 p. | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Nuclear Fusion, 57 (5), 056042-. | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Gas puffing | es |
dc.subject | ICRF coupling | es |
dc.subject | 3D simulation | es |
dc.subject | Edge plasma | es |
dc.subject | JET | es |
dc.title | 3D simulations of gas puff effects on edge plasma and ICRF coupling in JET | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/publishedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Física Atómica, Molecular y Nuclear | es |
dc.relation.projectID | 633053 | es |
dc.relation.publisherversion | https://doi.org/10.1088/1741-4326/aa6817 | es |
dc.identifier.doi | 10.1088/1741-4326/aa6817 | es |
dc.contributor.group | Universidad de Sevilla. RNM138: Física Nuclear Aplicada | es |
dc.journaltitle | Nuclear Fusion | es |
dc.publication.volumen | 57 | es |
dc.publication.issue | 5 | es |
dc.publication.initialPage | 056042 | es |