SINARA SOFTWARE PACKAGE FOR NUMERICAL SIMULATION OF EMERGENCY PROCESS DYNAMICS IN FAST REACTORS

V. V. Gadzhieva, N. V. Gorin, A. V. Kim, S. Yu. Kuzmin, S. N. Lebedev, T. V. Lebedeva, G.V. Orlov, V. N. Pisarev, N. V. Ptitsyna, E.M. Romanova, V. V. Rykovanova, O. V. Stryakhnina, E. A. Sozinov, A. A. Shestakov, V. M. Shmakov
VANT. Ser.: Mat. Mod. Fiz. Proc 2000. Вып.2. С. 63-73.

The paper describes a software package SINARA for calculating some emergency processes in a fast reactor. The movement of multicomponent one-speed medium is simulated. Account is taken of elastic and strength properties of materials, linear heat conduction, neutron transport in kinetic and diffusion approximations, nuclei kinetics, energy release, delayed neutrons. The medium model gives consideration for elasticity, plasticity, compressibility, destruction, fusion, evaporation and multicomponent nature. The finite-difference methods for calculating gas dynamics movement and thermal processes are based on implicit ROMB technique, those for calculating kinetic processes - on diamond model of Dsn-method. The calculations of core emergency energy release effect on reactor vessel were carried out. Base tools for arranging parallel computations on various types of computers were created. For parallelizing calculations a geometrical decomposition method with the introduction of internal boundary conditions was applied.