Simplified CFD model of coolant channels typical of a plate-type fuel element
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Brazilian Journal of Radiation Sciences
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The use of parallel plate-type fuel assemblies is common in nuclear research reactors. One of the main problems of this fuel element configuration is the hydraulic instability of the plates caused by the high flow velocities. The current work is focused on the hydrodynamic characterization of coolant channels typical of a flat-plate fuel element, using a numeri-cal model developed with the commercial code ANSYS CFX. Numerical results are compared to accurate analytical solutions, considering two turbulence models and three different fluid meshes. For this study, the results demonstrated that the most suitable turbulence model is the k- model. The discretization error is estimated using the Grid Conver-gence Index method. Despite its simplicity, this model generates precise flow predictions.
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MANTECON, J.G.; NETO, M.M. Simplified CFD model of coolant channels typical of a plate-type fuel element: an exhaustive verification of the simulations. Brazilian Journal of Radiation Sciences, v. 7, n. 2B, p. 1-16, 2019. DOI: 10.15392/bjrs.v7i2B.621. Disponível em: http://repositorio.ipen.br/handle/123456789/30850. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.