Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method

Critical Accident Analysis Method of Solution System Based on Monte Carlo Homogenization Theory and Finite Volume Method

Blog Article

Based on the Monte Carlo homogenization theory and the finite volume method, a three-dimensional diffusion spatiotemporal dynamics model suitable for the analysis of instantaneous critical accidents was established.The three-dimensional diffusion spatiotemporal dynamics model was coupled with the unsteady state heat transfer model and the radiation cracking bubble tonic shower cap model, and the calculation program GETAC-S was upgraded, so that GETAC-S had the ability to analyze the transient state of the solution system under any geometric and material conditions.GETAC-S was verified by the experimental data of TRACY, which was an international transient device, 1073spx and the results are in good agreement.

GETAC-S was used to invert the process of JCO criticality accident in Japan, and the results show that the GETAC-S has the ability to evaluate and retrieve the consequences of critical accidents in complex solution system, which provide theoretical support for the prevention, evaluation and shielding of nuclear critical accidents.