Title:
A coarse-mesh transport method for time-dependent reactor problems

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dc.contributor.advisor Rahnema, Farzad
dc.contributor.author Pounders, Justin Michael en_US
dc.contributor.committeeMember Forget, Benoit
dc.contributor.committeeMember Morely, Tom
dc.contributor.committeeMember Ougouag, Abderrafi
dc.contributor.committeeMember Petrovic, Bojan
dc.contributor.committeeMember Zhang, Dingkang
dc.contributor.department Nuclear and Radiological Engineering en_US
dc.date.accessioned 2011-07-06T16:48:53Z
dc.date.available 2011-07-06T16:48:53Z
dc.date.issued 2010-04-06 en_US
dc.description.abstract A new solution technique is derived for the time-dependent transport equation. This approach extends the steady-state coarse-mesh transport method that is based on global-local decompositions of large (i.e. full-core) neutron transport problems. The new method is based on polynomial expansions of the space, angle and time variables in a response-based formulation of the transport equation. The local problem (coarse mesh) solutions, which are entirely decoupled from each other, are characterized by space-, angle- and time-dependent response functions. These response functions are, in turn, used to couple an arbitrary sequence of local problems to form the solution of a much larger global problem. In the current work, the local problem (response function) computations are performed using the Monte Carlo method, while the global (coupling) problem is solved deterministically. The spatial coupling is performed by orthogonal polynomial expansions of the partial currents on the local problem surfaces, and similarly, the timedependent response of the system (i.e. the time-varying flux) is computed by convolving the time-dependent surface partial currents and time-dependent volumetric sources against pre-computed time-dependent response kernels. en_US
dc.description.degree Ph.D. en_US
dc.identifier.uri http://hdl.handle.net/1853/39586
dc.publisher Georgia Institute of Technology en_US
dc.subject Response method en_US
dc.subject Time-dependent neutron transport en_US
dc.subject.lcsh Polynomials
dc.subject.lcsh Monte Carlo method
dc.subject.lcsh Nuclear power plants
dc.subject.lcsh Nuclear reactors Safety measures
dc.title A coarse-mesh transport method for time-dependent reactor problems en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.advisor Rahnema, Farzad
local.contributor.corporatename George W. Woodruff School of Mechanical Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication 1d96b222-d2f0-46d1-a0c7-4d1f9254dfab
relation.isOrgUnitOfPublication c01ff908-c25f-439b-bf10-a074ed886bb7
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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