Modeling nuclear fuel assemblies through porous zones in a Small Modular Reactor: fluid dinamic considerations. Braz. J. Radiat. Sci. [Internet]. 2025 Jul. 16 [cited 2025 Jul. 20];12(4B (Suppl.):e2708. Available from: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/2708