
3D neutron diffusion computational code based on GFEM with unstructured tetrahedron elements: A comparative study for linear and quadratic approximations
Keywords: Galerkin Finite Element Method; Unstructured tetrahedron elements; Neutron flux; Power distribution; Linear; QuadraticFEM, Finite Element Method; GFEM, Galerkin Finite Element Method; FA, Fuel assembly; φg(r), Forward flux in the energy group g; keff, For