The time-dependent P1 model for the neutronics of multiplying systems: a review
| Autor: | Gianni Coppa, Sandra Dulla, Piero Ravetto |
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| Rok vydání: | 2010 |
| Předmět: |
Physics
Nuclear and High Energy Physics Neutron transport Radiation Partial differential equation Differential equation Mathematical analysis Spherical harmonics people.profession Boltzmann equation Telegrapher Nuclear Energy and Engineering Time derivative General Materials Science Statistical physics Safety Risk Reliability and Quality people Series expansion |
| Zdroj: | Kerntechnik. 75:200-205 |
| ISSN: | 2195-8580 0932-3902 |
| Popis: | The derivation of the time-dependent P1 model by the spherical harmonics expansion approach to solve the neutron transport equation is reviewed and its main features and physical characteristics are illustrated. The telegrapher's equation is presented and its formulation for multiplying systems is discussed. In particular, it is evidenced that the presence of a time derivative of the source terms in the telegrapher's equation implies the appearance of time derivatives of the flux and of the precursor concentrations. The role of these terms is evaluated and discussed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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