College of Computer and Communication;
Lanzhou University of Technology;
Lanzhou 730050;
China;
State Key Laboratory of Gansu Advanced Processing and Recycling of Non-Ferrous Metal;
Lanzhou University of Technology;
Lanzhou 730050;
China;
Institute of Modern Physics;
Chinese Academy of Sciences;
Lanzhou 730000;
China;
School of Nuclear Science and Technology;
University of Chinese Academy of Sciences;
Beijing 100049;
China;
Advanced Energy Science and Technology Guangdong Laboratory;
Huizhou 516000;
China;
multi-phase field model; GPU; grain competition growth; lattice Boltzmann model;