محمد يزدي كريمي

Nowadays, most of the steel ingots are produced using the continuous casting process. Considering the complexity of the process and the difficulty of measuring parameters and controlling them, numerical modeling is a valuable and useful method for control and optimization of the process. In this research, with the aim of calculating temperature distribution and solidification in continuous casting strand, three-dimensional numerical simulation of fluid flow and heat transfer with solidification has been done. k-ε model was used to model the turbulent flow and Darcy's equation was used to correct the flow in the mushy zoon. The transfer equations governing the process have been solved with the finite volume method according to the appropriate boundary conditions. The experimental and simulation results in this research are consistent with the results obtained from other researches in this field. Also, in this research, the analysis of the stress in the solid shell that is subjected to Soft Reduction operation has been discussed. In order to investigate the stress analysis in the solid shell formed during the continuous casting process, the COMSOL Multiphysics software, which is based on the FEM method, has been used, in which the results of the heat transfer and solidification model are used as the input data. Using COMSOL, the stress analysis in the solid shell under mechanical and thermal stress has been calculated and the possibility of cracking in the solid shell has been eva‎luated.

شبيه سازي عددي , ريخته گري پيوسته , انتقال گرما , جريان سيال , تغييرفرم جزئي , آناليز تنش

numerical simulation , continuous casting , heat transfer , fluid flow , soft reduction , stress analysis

mohamad yazdi karimi

Dr.Mohamadreza Abutalebi- Dr.Seyed Hossein Seyedein