A simplified heterogeneous B1 model with isotropically-reflected neutrons on assembly boundary
Апстракт
This model is based on the heterogeneous B1 theory and accounts for heterogeneous effects on the neutron streaming At the price of some approximations, it yields an iterative scheme to simultaneously compute the multigroup scalar fluxes and the directional currents in a heterogeneous geometry Although a similar simplified model, called TIBERE, has already been proposed for specularly-reflected neutrons on the assembly (or cell) boundary, there was a need to develop this new model, called TIBERE-2, for isotropically-reflected neutrons on the boundary This new model requires the classical and directional escape and transmission probabilities calculated for an open to the classical and directional first flight collision probabilities calculated for an open assembly Consequently, considering the specific geometry of the CANDU reactor lattice, calculations with the TIBERE-2 model are as appropriate but less time consuming than those with the TIBERE model Moreover this new model circumvents ...the divergence, leading to infinite leakage coefficients, appearing in the TIBERE model in the case when a PWR assembly is completely voided The TIBERE-2 model has been introduced, for 2D geometry, in the multigroup transport code DRAGON, in order to evaluate space-dependent leakage coefficients. (Author)
Извор:
Proceedings of the 1994 nuclear simulation symposium, 1994, 45-54Напомена:
- 1994 nuclear simulation symposium; Pembroke, ON (Canada); 12-14 Oct 1994
URI
http://inis.iaea.org/search/search.aspx?orig_q=RN:27066219https://vinar.vin.bg.ac.rs/handle/123456789/8554
Колекције
Институција/група
VinčaTY - CONF AU - Petrović, Ivan M. AU - Benoist, Pierre AU - Marleau, Guy PY - 1994 UR - http://inis.iaea.org/search/search.aspx?orig_q=RN:27066219 UR - https://vinar.vin.bg.ac.rs/handle/123456789/8554 AB - This model is based on the heterogeneous B1 theory and accounts for heterogeneous effects on the neutron streaming At the price of some approximations, it yields an iterative scheme to simultaneously compute the multigroup scalar fluxes and the directional currents in a heterogeneous geometry Although a similar simplified model, called TIBERE, has already been proposed for specularly-reflected neutrons on the assembly (or cell) boundary, there was a need to develop this new model, called TIBERE-2, for isotropically-reflected neutrons on the boundary This new model requires the classical and directional escape and transmission probabilities calculated for an open to the classical and directional first flight collision probabilities calculated for an open assembly Consequently, considering the specific geometry of the CANDU reactor lattice, calculations with the TIBERE-2 model are as appropriate but less time consuming than those with the TIBERE model Moreover this new model circumvents the divergence, leading to infinite leakage coefficients, appearing in the TIBERE model in the case when a PWR assembly is completely voided The TIBERE-2 model has been introduced, for 2D geometry, in the multigroup transport code DRAGON, in order to evaluate space-dependent leakage coefficients. (Author) C3 - Proceedings of the 1994 nuclear simulation symposium T1 - A simplified heterogeneous B1 model with isotropically-reflected neutrons on assembly boundary SP - 45 EP - 54 UR - https://hdl.handle.net/21.15107/rcub_vinar_8554 ER -
@conference{ author = "Petrović, Ivan M. and Benoist, Pierre and Marleau, Guy", year = "1994", abstract = "This model is based on the heterogeneous B1 theory and accounts for heterogeneous effects on the neutron streaming At the price of some approximations, it yields an iterative scheme to simultaneously compute the multigroup scalar fluxes and the directional currents in a heterogeneous geometry Although a similar simplified model, called TIBERE, has already been proposed for specularly-reflected neutrons on the assembly (or cell) boundary, there was a need to develop this new model, called TIBERE-2, for isotropically-reflected neutrons on the boundary This new model requires the classical and directional escape and transmission probabilities calculated for an open to the classical and directional first flight collision probabilities calculated for an open assembly Consequently, considering the specific geometry of the CANDU reactor lattice, calculations with the TIBERE-2 model are as appropriate but less time consuming than those with the TIBERE model Moreover this new model circumvents the divergence, leading to infinite leakage coefficients, appearing in the TIBERE model in the case when a PWR assembly is completely voided The TIBERE-2 model has been introduced, for 2D geometry, in the multigroup transport code DRAGON, in order to evaluate space-dependent leakage coefficients. (Author)", journal = "Proceedings of the 1994 nuclear simulation symposium", title = "A simplified heterogeneous B1 model with isotropically-reflected neutrons on assembly boundary", pages = "45-54", url = "https://hdl.handle.net/21.15107/rcub_vinar_8554" }
Petrović, I. M., Benoist, P.,& Marleau, G.. (1994). A simplified heterogeneous B1 model with isotropically-reflected neutrons on assembly boundary. in Proceedings of the 1994 nuclear simulation symposium, 45-54. https://hdl.handle.net/21.15107/rcub_vinar_8554
Petrović IM, Benoist P, Marleau G. A simplified heterogeneous B1 model with isotropically-reflected neutrons on assembly boundary. in Proceedings of the 1994 nuclear simulation symposium. 1994;:45-54. https://hdl.handle.net/21.15107/rcub_vinar_8554 .
Petrović, Ivan M., Benoist, Pierre, Marleau, Guy, "A simplified heterogeneous B1 model with isotropically-reflected neutrons on assembly boundary" in Proceedings of the 1994 nuclear simulation symposium (1994):45-54, https://hdl.handle.net/21.15107/rcub_vinar_8554 .