dc.creator | Omotani, J.T. | es |
dc.creator | Newton, S.L. | es |
dc.creator | Pusztai, I. | es |
dc.creator | Viezzer, Eleonora | es |
dc.creator | Fülöp, T. | es |
dc.date.accessioned | 2018-09-17T11:12:28Z | |
dc.date.available | 2018-09-17T11:12:28Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Omotani, J.T., Newton, S.L., Pusztai, I., Viezzer, E. y Fülöp, T. (2017). Edge momentum transport by neutrals: an interpretive numerical framework. Nuclear Fusion, 57, 066048 (7pp). | |
dc.identifier.issn | 1741-4326 | es |
dc.identifier.uri | https://hdl.handle.net/11441/78557 | |
dc.description.abstract | Due to their high cross-field mobility, neutrals can contribute to momentum transport even at
the low relative densities found inside the separatrix and they can generate intrinsic rotation.
We use a charge-exchange dominated solution to the neutral kinetic equation, coupled to
neoclassical ions, to evaluate the momentum transport due to neutrals. Numerical solutions
to the drift-kinetic equation allow us to cover the full range of collisionality, including the
intermediate levels typical of the tokamak edge. In the edge there are several processes likely
to contribute to momentum transport in addition to neutrals. Therefore, we present here an
interpretive framework that can evaluate the momentum transport through neutrals based
on radial plasma profiles. We demonstrate its application by analysing the neutral angular
momentum flux for an L-mode discharge in the ASDEX Upgrade tokamak. The magnitudes of
the angular momentum fluxes we find here due to neutrals of 0.6
–
2
Nm
are comparable to the
net torque on the plasma from neutral beam injection, indicating the importance of neutrals for
rotation in the edge. | es |
dc.description.sponsorship | Vetenskapsrådet and Marie Sklodowska Curie Actions, Cofund, Project INCA 600398 | es |
dc.format | application/pdf | es |
dc.language.iso | eng | es |
dc.publisher | IOP Publishing | es |
dc.relation.ispartof | Nuclear Fusion, 57, 066048 (7pp). | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.subject | Tokamak | es |
dc.subject | Rotation | es |
dc.subject | Neutrals | es |
dc.subject | Neoclassical | es |
dc.subject | Momentum transport | es |
dc.title | Edge momentum transport by neutrals: an interpretive numerical framework | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/submittedVersion | 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 | INCA 600398 | es |
dc.relation.publisherversion | http://iopscience.iop.org/article/10.1088/1741-4326/aa6ce4 | es |
dc.identifier.doi | 10.1088/1741-4326/aa6ce4 | es |
idus.format.extent | 7 | es |
dc.journaltitle | Nuclear Fusion | es |
dc.publication.volumen | 57 | es |
dc.publication.initialPage | 066048 (7pp) | es |
dc.identifier.sisius | 21242311 | es |
dc.identifier.sisius | 21242311 | |
dc.contributor.funder | European Union (UE) | |