Research and Preliminary Calculation of Fuel Performance Analysis Model Based on Multi-physics Coupling Method
Fuel rod is the core component of reactor,which can generate energy and contain strong radioactive substances.It is of great significance to analyze its performance.Traditional performance analysis software is difficult to analyze complex operating conditions and local effects.In recent years,fuel properties have been analyzed based on multi-physics coupling platform.Based on the COMSOL platform,a three-dimensional thermal-force-irradiation coupling analysis model for rod-like fuel was developed,which considered the change of the physical properties of pellets and cladding with temperature and burnup,as well as a series of in-reactor behaviors of fuel rods.The calculation of the new fuel element based on SP-100 has a certain reference significance.
performance analysismultiple physical fieldsthree-dimensional couplingfinite element method