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Effect of the initial VDFs in magnetic nozzle expansions

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Aeroespaciales
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Equipo de Propulsión Espacial y Plasmas (EP2)es
dc.contributor.authorCorreyero Plaza, Sara
dc.contributor.authorMerino Martínez, Mario
dc.contributor.authorAhedo Galilea, Eduardo Antonio
dc.contributor.funderEuropean Commissiones
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2020-09-25T09:15:13Z
dc.date.available2020-09-25T09:15:13Z
dc.date.issued2019-09-15
dc.description.abstractThis work presents a kinetic study of the plasma response in a fully magnetized plasma expansion. A paraxial, collisionless, steady-state plasma model is used to analyze the effect of expanding in a convergent-divergent nozzle a plasma with different types of VDF at the plasma reservoir. The first part of the paper studies the kinetic features, such as magnetic mirroring and anisotropy for both ions and electrons. The collective effects are analyzed by evaluating the momentum and energy equations based on the kinetic solution. The study of the collisionless heat fluxes allows estimating a simple closure to the fluid equation hierarchy for the electrons. The second part of the paper analyzes the solution with two species of electrons with disparate temperatures at the upstream source. A quasineutral steepened profile is formed, which impacts the plasma properties along the expansion. The collisionless electron cooling, as well as the anisotropy on the divergent side of the nozzle are analyzed by separating the different subpopulations of electrons (free, reflected, or doubly-trapped), of both the thermal and the suprathermal species.en
dc.description.sponsorshipThe work has been supported by Project ESP2016-75887 (Spain’s National Research and Development Plan - MINECO/FEDER), and by the European Union Horizon 2020 project MINOTOR, that has received funding from the research and innovation program under grant agreement No 730028.en
dc.identifier.bibliographicCitation36th International Electric Propulsion Conference (IEPC), september, 15-20, 2019, Vienna, 14 p.
dc.identifier.urihttps://hdl.handle.net/10016/30851
dc.identifier.uxxiCC/0000030955
dc.language.isoengen
dc.relation.eventdate2019-09-15
dc.relation.eventplaceAustria
dc.relation.eventtitle36th International Electric Propulsion Conference (IEPC), Vienna, Austria, September 15-20, 2019en
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/730028
dc.relation.projectIDGobierno de España. ESP2016-75887-P
dc.relation.publisherversionhttp://electricrocket.org/2019/818.pdf
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.ecienciaAeronáuticaes
dc.titleEffect of the initial VDFs in magnetic nozzle expansionsen
dc.typeconference output*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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