ADVANCED NUMERICAL-METHODS FOR THERMALHYDRAULICS

BARRE F PARENT M BRUN B

F. Barre et al., ADVANCED NUMERICAL-METHODS FOR THERMALHYDRAULICS, Nuclear Engineering and Design, 145(1-2), 1993, pp. 147-158

11

INGLESE

Article

Nuclear Sciences & Tecnology

Nuclear Engineering and Design → ACNP

0029-5493

145

1-2

1993

147 - 158

ISI

0029-5493(1993)145:1-2<147:ANFT>2.0.ZU;2-F

New applications have been found for advanced best estimate codes, due to the needs for industrial studies and safety studies, and due also to the appearance of new generations of computers, such as powerful wo rk stations. Thus developments have been focused on the optimization o f the numerical performance of thermal-hydraulics codes based on the t wo-fluid six equation model. One important goal is that of minimizing the computing time. Comparisons of existing methods demonstrate that a fully implicit scheme is well suitable for optimization. A second fie ld of investigation is to develop powerful three-dimensional modules w ith advanced numerical methods, as multistep method, conjugate gradien t method for the solver and, in future, non-structured meshing.