Show simple item record

dc.contributor.authorRatushnaya, Valeria*
dc.contributor.authorSamtaney, Ravi*
dc.date.accessioned2017-01-09T13:26:09Z
dc.date.available2017-01-09T13:26:09Z
dc.date.issued2016-12-17en
dc.identifier.citationRatushnaya V, Samtaney R (2016) Transient growth of a Vlasov plasma in a weakly inhomogeneous magnetic field. Physics of Plasmas 23: 122116. Available: http://dx.doi.org/10.1063/1.4972083.en
dc.identifier.issn1070-664Xen
dc.identifier.issn1089-7674en
dc.identifier.doi10.1063/1.4972083en
dc.identifier.urihttp://hdl.handle.net/10754/622672
dc.description.abstractWe investigate the stability properties of a collisionless Vlasov plasma in a weakly inhomogeneous magnetic field using non-modal stability analysis. This is an important topic in a physics of tokamak plasma rich in various types of instabilities. We consider a thin tokamak plasma in a Maxwellian equilibrium, subjected to a small arbitrary perturbation. Within the framework of kinetic theory, we demonstrate the emergence of short time scale algebraic instabilities evolving in a stable magnetized plasma. We show that the linearized governing operator (Vlasov operator) is non-normal leading to the transient growth of the perturbations on the time scale of several plasma periods that is subsequently followed by Landau damping. We calculate the first-order distribution function and the electric field and study the dependence of the transient growth characteristics on the magnetic field strength and perturbation parameters of the system. We compare our results with uniformly magnetized plasma and field-free Vlasov plasma.en
dc.description.sponsorshipKing Abdullah University of Science and Technologyen
dc.publisherAIP Publishingen
dc.relation.urlhttp://aip.scitation.org/doi/10.1063/1.4972083en
dc.rightsArchived with thanks to Physics of Plasmasen
dc.titleTransient growth of a Vlasov plasma in a weakly inhomogeneous magnetic fielden
dc.typeArticleen
dc.contributor.departmentMechanical Engineering Program*
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division*
dc.identifier.journalPhysics of Plasmasen
dc.eprint.versionPublisher's Version/PDFen
kaust.personRatushnaya, Valeria*
kaust.personSamtaney, Ravi*
refterms.dateFOA2017-12-16T00:00:00Z


Files in this item

Thumbnail
Name:
12E4972083.pdf
Size:
925.1Kb
Format:
PDF
Description:
Main article

This item appears in the following Collection(s)

Show simple item record