This paper presents a GPU-based, incompressible, multiphase generalized finite difference solver for simulating flow. The method includes dampening scheme that allows large density ratio cases to be simulated. Two verification studies are performed by the relaxation of square droplet surrounded light fluid and bubble rising in denser fluid. is also used simulate collision binary droplets at mod...

The internal flow in the rotating bucket of Pelton turbine is free water sheet flow with moving boundary. The runner operates under atmospheric and the cavitation in the bucket is still a controversial problem. While more and more field practice proved that there exists cavitation in the Pelton turbine bucket and the cavitation erosion may occur at the worst which will damage the bucket. So a w...