Graduate Thesis Or Dissertation

 

One and two dimensional space-energy flux synthesis with spatially discontinuous trial functions Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/zp38wg77r

Descriptions

Attribute NameValues
Creator
Abstract
  • The development of nuclear reactors as an energy source requires a substantial investment in capital and effort. This development depends heavily on accurate calculational methods. Space-energy flux synthesis, also variously called the spectral synthesis method, modal method, and overlapping group method, is one possible method. In this method the energy dependent flux is approximated by a superposition of energy trial functions (spectra). This thesis examines the use of this expansion in the context of diffusion theory. One and two dimensional diffusion theory codes have been written to accommodate a very general formulation of the spectral synthesis method. These codes use simultaneous solution methods to eliminate many of the convergence problems previously encountered with overlapping groups, while allowing a wide choice of interface conditions. Numerical experiments using these codes compare various choices of trial functions and types of weighting. A major portion of the investigation concerns the use of different sets of trial functions in different regions (spatially discontinuous trial functions). Particular attention is accorded to trial function and material interface conditions. Results favor conditions which preserve energy integrals of flux and current at interfaces.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Submitted by Georgeann Booth (gbscannerosu@gmail.com) on 2014-01-18T00:47:59Z No. of bitstreams: 1 OlsonWillardOrvin1975.pdf: 1994972 bytes, checksum: f72cd868988cda7b6d48034e3c52e980 (MD5)
  • description.provenance : Approved for entry into archive by Katy Davis(kdscannerosu@gmail.com) on 2014-01-22T18:10:36Z (GMT) No. of bitstreams: 1 OlsonWillardOrvin1975.pdf: 1994972 bytes, checksum: f72cd868988cda7b6d48034e3c52e980 (MD5)
  • description.provenance : Made available in DSpace on 2014-01-22T18:10:36Z (GMT). No. of bitstreams: 1 OlsonWillardOrvin1975.pdf: 1994972 bytes, checksum: f72cd868988cda7b6d48034e3c52e980 (MD5) Previous issue date: 1974-06-07
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2014-01-21T15:50:50Z (GMT) No. of bitstreams: 1 OlsonWillardOrvin1975.pdf: 1994972 bytes, checksum: f72cd868988cda7b6d48034e3c52e980 (MD5)

Relationships

Parents:

This work has no parents.

Items