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dc.contributor.advisorMahajan, Swadesh M.
dc.contributor.advisorHazeltine, R. D. (Richard D.)
dc.creatorChen, Zhongping
dc.date.accessioned2017-06-29T21:06:04Z
dc.date.available2017-06-29T21:06:04Z
dc.date.issued2017-05
dc.date.submittedMay 2017
dc.identifierdoi:10.15781/T2XP6V98V
dc.identifier.urihttp://hdl.handle.net/2152/47382
dc.description.abstractProblems of intense exhaust heat and particle fluxes incident on material surfaces are obstacles for magnetic confinement fusion in tokamaks. Advanced divertors offer magnetic solutions to the problems by (a) increasing the plasma-wetted area via flux expansion at the targets, (b) increasing the connection length and (c) in the case of X-divertors opening regimes of stable, detached operation via poloidal flaring. By magnetic equilibrium modeling using CORSICA code, X-divertors appear feasible on NSTX-U tokamak, requiring no hardware change and respecting coil current limits. Transport simulations using SOLPS code on NSTX-U have demonstrated the advantages of the X-divertor over the standard divertor: reducing target heat and particle fluxes, achieving detachment with a lower upstream density and stabilizing the detachment front near the target.
dc.format.mimetypeapplication/pdf
dc.language.isoen
dc.subjectDivertor
dc.subjectMagnetic equilibrium
dc.subjectTransport modeling
dc.subjectExhaust problems
dc.subjectTokamaks
dc.subjectX-divertors
dc.subjectMagnetic confinement fusion
dc.subjectParticle fluxes
dc.subjectExhaust heat
dc.subjectPoloidal flaring
dc.titleMagnetic equilibrium and transport modeling of divertors for solutions to exhaust problems in tokamaks
dc.typeThesis
dc.date.updated2017-06-29T21:06:04Z
dc.contributor.committeeMemberKotschenreuther, Michael T
dc.contributor.committeeMemberMorrison, Philip J
dc.contributor.committeeMemberSadun, Lorenzo A
dc.description.departmentPhysics
thesis.degree.departmentPhysics
thesis.degree.disciplinePhysics
thesis.degree.grantorThe University of Texas at Austin
thesis.degree.levelDoctoral
thesis.degree.nameDoctor of Philosophy
dc.type.materialtext


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