TRACE stands for TRAC/RELAP Advanced Computation Engine.[^1] This is the modern analysis code used by the NRC.[^1] Some other simulations were then coupled to this model.[^1] It uses a cylindrical 3-D vessel model.[^1] It s a full two-fluid (6-equation) system code that can model 1D and 3D components within a reactor system during steady state and transient conditions.[^1] There are 2 mass, 2 momentum, and 2 energy equations.[^1] It can also solve Navier Stoke’s Equations for both steady-state and transient operating conditions.[^1] TRACE calculates the hydraulics and heat transfer equations by reducing the full Jacobian down to a tri-diagonal pressure matrix from which it back-calculates all of the other parameters.[^1]
[[Spatial Kinetics]]
#ncstatenuclearSeminarMultiphysicsModeling2019[^1]