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Monte Carlo methodologies for neutron streaming in diffusion calculations - Application to directional diffusion coefficients and leakage models in XS generation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Dorval, Eric |
| Copyright Year | 2016 |
| Abstract | complex systems that involve several physical phenomena. The safe and sustainable operation of present-day reactors requires powerful numerical methods. Moreover, innovative reactor concepts pose an additional burden on the computational techniques available nowadays. This thesis explores the performance of preexisting and novel numerical formalisms for the solution of the steady-state neutron transport problem by combined Monte Carlo and diffusion theory methods with a view to improving the accuracy of the solution whilst keeping computational costs at reasonable levels. A new directional diffusion coefficient method exhibited very good performance in a sodium-cooled reactor environment. A novel neutron leakage model at assembly level provided valuable information about the spaceenergy coupling of the scalar neutron flux. A ato-D D 6 0 /2 16 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://aaltodoc.aalto.fi/bitstream/handle/123456789/20086/isbn9789526067360.pdf?isAllowed=y&sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
