Compared with foreign research, domestic research started late, and domestic research on casting numerical simulation technology began in the 1970s. In 1979, with the preparation of the National Foundry Society, the first solidification theory seminar in China was successfully held in Dalian. Since then, many research institutions and colleges and universities have carried out research on casting solidification theory.
In 1987, Wang Junqing of Shenyang foundry Institute improved the SOLA-VOF calculation program during his visit to Danish University of science and technology, developed the two-dimensional calculation program into three-dimensional, and added three-dimensional heat transfer calculation to the software. Then the improved calculation program is used to simulate the three-dimensional mold filling and solidification process of a cast iron tee pipe, and the simulation results are basically consistent with the experimental results. In the research process, he compared two-dimensional SMAC, SOLA-VOF and simple software. The results showed that there was no great difference in the calculation accuracy of several software, but the three-dimensional SOLA-VOF method was significantly better than others in the calculation speed. So until now, most commercial software, including some related papers, have developed the filling calculation method from SOLA-VOF.
In 1995, Tai Yongjian of Southeast University used simple algorithm to simulate and analyze the flow field and temperature field of twin roll strip continuous casting, and achieved good results. In 1997, Qiu Wei introduced K based on SOLA-VOF algorithm- ε The two equation model and the improved algorithm are used to study the turbulence phenomenon in the mold filling process.
In 1998, researchers led by an geying introduced turbulent fluid calculation technology into casting filling simulation, which improved the progress of calculation.
In 2001, researchers of North China Institute of technology proposed the three-dimensional approximate box iterative method. This new calculation method uses the mixed difference scheme to discretize the equation, which can accurately and quickly solve the N-S equation.
In 2002, researchers of Shenyang Institute of technology led by Cui haipo studied the treatment of free surface by fem-mac method, and achieved good results.
In addition, Zhou Jianxin of Huazhong University of science and technology and others introduced the non-uniform grid technology into InteCAST software, which improved both the calculation time and the calculation accuracy. Compared with foreign countries, although China’s casting numerical simulation technology has its own characteristics in some aspects, there is still a big gap, especially in the development and Application Research of commercial software. China’s commercialization not only has a small number, but also has a low penetration rate, and the application field needs to be expanded.
In recent years, more and more factories have applied casting numerical simulation technology in China. In order to improve their market competitiveness, major enterprises and manufacturers have cooperated with colleges and universities and research institutions, which provides a solid foundation and driving force for the further development of casting numerical simulation technology in China.