The Large-Scale Auto Modeling Tool for Monte Carlo Simulations

Abstract

The DAYAWAN reactor core pin-by-pin model has complex geometry, it contains 157 fuel assemblies, and each fuel assembly contains 17*17 fuel pins. In order to achieve a precise power distribution of the core by MC calculation, each of the fuel pins should be at least divided into 16 axial sections, then the number of the pins is 725968, hence the total solid number of the reactor may be over millions. In order to efficiently generate complex models such as DAYAWAN, it is necessary to develop visual modeling tools based on CAD kernel. Therefore, we developed the JLAMT software. By using this tool, the DAYAWAN pin-by-pin model was created easily.