浅水長波方程式適合型MPS法の開発と衝突噴流シミュレーション

抄録

In fluid machines, oil is injected to prevent gas leakage from the gaps between the rotors and to prevent deterioration due to friction. The oil becomes a thin film due to the collisional jet, which is difficult to simulate accurately with the particle method that solves the three-dimensional Navier-Stokes equations. In this study, an MPS Method for Shallow Water Equation incorporating a particle splitting technique is developed. Simulation of a dam collapse problem was performed, and the result was in good agreement with the experiment. In addition, a thin film flow produced by a collisional jet was simulated.