A Reduced Order Model Based on ANN-POD Algorithm for Steady-State Neutronics and Thermal-Hydraulics Coupling Problem

Table 2

Boundary conditions [22].

Neutron	Vacuum boundary condition	Zero gradient	Zero gradient	Vacuum boundary condition
Fuel temperature	Zero gradient	Zero gradient	Zero gradient	Zero gradient
Coolant temperature	Fixed value	Zero gradient	—	—
Coolant velocity	Fixed value	Determined by pressure	—	—
Coolant pressure	Determined by velocity	Fixed value	—	—