抄録
Computer simulation has an important role for various industrial processes. In casting, many phenomena such as fluid flow or solidification are calculated by computer simulation. However, it is quite difficult to simulate them integrally, because these phenomena complexly interact each other. Therefore, to estimate shrinkage or other defects, we have no other way than using special techniques such as Niyama criterion, indirectly. Recently, a simulation program with new approaches based on lagrangian method is developed. It is named particle method. Particle method can couple various simulations such as fluid flow, solidification, and structure analysis. Then, it is possible to calculate shrinkage, shrinkage flow, and deformation, directly. In this study, heat transfer and solidification analysis using particle method is examined as the first step of coupled simulation. As a result, it is confirmed that the program using particle method has equal quality as that using finite volume method.
