2425 粒子法によるペルトン水車バケット内流れの数値解析 : 静止バケット内の流れ(S41-4 流体機械に関連した複雑内部流動の解析と計測(トルクコンバータ・水車・ポンプ),S41 流体機械に関連した複雑内部流動の解析と計測)  [in Japanese] 2425 Numerical Simulation of the Flow in a Pelton Bucket by a Particle Method : Flow in a Stationary Bucket  [in Japanese]

The flow in a stationary Pelton bucket is simulated by a Moving-Particle Semi-Implicit Method (MPS). The bucket is set at three angular positions so that different inlet conditions can be imposed. In the MPS method, the solid wall of the bucket has to be represented by the same calculation particles as the particles for fluid, though a Pelton bucket has complicated 3D shape. Therefore, a simple method arranging the wall particles is proposed. The particle and pressure distributions on the bucket are presented in this paper.