Abstract
The flow in a rotating Pelton bucket is simulated by a Moving-Particle Semi-Implicit Method (MPS). In the MPS method, the solid wall of the bucket has to be represented by the same calculation particles as those for fluid, though a Pelton bucket has complicated 3D shape. Therefore, a simple method arranging the wall particles is introduced. As the first step of MPS simulation, the jet entering the bucket is determined by relative jet paths. The free sheet flow on the rotating bucket is simulated and discharging flow pattern is compared with the photograph taken in the model test.
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