par Alcaro, F.;Dulla, S.;Marleau, G.;Mund, Ernest 
;Ravetto, P.
Référence Il Nuovo cimento C., 33, 1, page (13-20)
Publication Publié, 2010
;Ravetto, P.Référence Il Nuovo cimento C., 33, 1, page (13-20)
Publication Publié, 2010
Article révisé par les pairs
| Résumé : | A quasi-static approach within the framework of neutron transport theory is used to develop a computational tool for the time-dependent analysis of nuclear systems. The determination of the shape function needed for the quasi- static scheme is obtained by the steady-state transport code DRAGON. The kinetic model solves the system of ordinary differential equations for the amplitude function on a fast scale. The kinetic parameters are calculated by a coupling module that retrieves the shape from the output of the transport code and performs the required adjoint-weighted quadratures. When the update of the shape has to be carried out, the coupling module generates an appropriate input file for the transport code. Both the standard Improved Quasi-Static scheme and an innovative Predictor-Corrector algorithm are implemented. The results show the feasibility of both procedures and their effectiveness in terms of computational times and accuracy. © Società Italiana di Fisica. |
