论文信息 - Effect of particulate behavior on criticality evaluation in agitating powder of nuclear fuel

Effect of particulate behavior on criticality evaluation in agitating powder of nuclear fuel

Consideration of the particle behavior is essential to carry out accurately the criticality evaluation involving granular flow, because the powder free surface deformation affects the criticality evaluation result. The conventional criticality evaluations could not consider the powder deformation. Therefore, we have developed a new code system by coupling the DEM simulation code with a continuous-energy Monte Carlo transport code to investigate the effect of the free surface deformation on the criticality evaluation.

[1] Masayuki Horio,et al. DEM simulation of fluidized beds for gas-phase olefin polymerization , 1999 .

[2] P. Cundall,et al. A discrete numerical model for granular assemblies , 1979 .

[3] T. B. Anderson,et al. Fluid Mechanical Description of Fluidized Beds. Equations of Motion , 1967 .

[4] C.R.E. de Oliveira,et al. Space-dependent kinetics simulation of a gas-cooled fluidized bed nuclear reactor , 2003 .

[5] Aibing Yu,et al. Simulated and measured flow of granules in a bladed mixer—a detailed comparison , 2001 .

[6] Yutaka Tsuji,et al. Lagrangian numerical simulation of plug flow of cohesionless particles in a horizontal pipe , 1992 .