dc.creator | Marcus, Francisco Alberto | |
dc.creator | Caldas, Ibere Luiz | |
dc.creator | Guimarães Filho, Zwinglio de Oliveira | |
dc.creator | Morrison, Philip James | |
dc.creator | Horton, Wendell | |
dc.creator | Kuznetsov, Yurii | |
dc.creator | Nascimento, Ivan Cunha | |
dc.date.accessioned | 2012-04-18T23:54:27Z | |
dc.date.accessioned | 2018-07-04T14:38:22Z | |
dc.date.available | 2012-04-18T23:54:27Z | |
dc.date.available | 2018-07-04T14:38:22Z | |
dc.date.created | 2012-04-18T23:54:27Z | |
dc.date.issued | 2008 | |
dc.identifier | PHYSICS OF PLASMAS, v.15, n.11, 2008 | |
dc.identifier | 1070-664X | |
dc.identifier | http://producao.usp.br/handle/BDPI/15971 | |
dc.identifier | 10.1063/1.3009532 | |
dc.identifier | http://dx.doi.org/10.1063/1.3009532 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1612793 | |
dc.description.abstract | Investigations of chaotic particle transport by drift waves propagating in the edge plasma of tokamaks with poloidal zonal flow are described. For large aspect ratio tokamaks, the influence of radial electric field profiles on convective cells and transport barriers, created by the nonlinear interaction between the poloidal flow and resonant waves, is investigated. For equilibria with edge shear flow, particle transport is seen to be reduced when the electric field shear is reversed. The transport reduction is attributed to the robust invariant tori that occur in nontwist Hamiltonian systems. This mechanism is proposed as an explanation for the transport reduction in Tokamak Chauffage Alfven Bresilien [R. M. O. Galvao , Plasma Phys. Controlled Fusion 43, 1181 (2001)] for discharges with a biased electrode at the plasma edge. | |
dc.language | eng | |
dc.publisher | AMER INST PHYSICS | |
dc.relation | Physics of Plasmas | |
dc.rights | Copyright AMER INST PHYSICS | |
dc.rights | openAccess | |
dc.subject | chaos | |
dc.subject | convection | |
dc.subject | discharges (electric) | |
dc.subject | plasma drift waves | |
dc.subject | plasma flow | |
dc.subject | plasma nonlinear waves | |
dc.subject | plasma toroidal confinement | |
dc.subject | plasma transport processes | |
dc.subject | plasma turbulence | |
dc.subject | shear turbulence | |
dc.subject | Tokamak devices | |
dc.title | Reduction of chaotic particle transport driven by drift waves in sheared flows | |
dc.type | Artículos de revistas | |