Development of dynamic models for neutron transport calculations

Alcaro, F. and Dulla, S. and Marleau, G. and Mund, E. H. and Ravetto, P. (2010) Development of dynamic models for neutron transport calculations. Il nuovo cimento C, 33 (1). pp. 13-20. ISSN 1826-9885

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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 quasistatic 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.

Item Type: Article
Uncontrolled Keywords: Neutron transport: diffusion and moderation ; Fission reactor types ; Theory, design, and computerized simulation
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 31 Mar 2020 15:13
Last Modified: 31 Mar 2020 15:13

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