TITLE:
Simulation of Unsteady Water Film Flow on Pelton Bucket
AUTHORS:
Shen Na
KEYWORDS:
Water Film Flow; Simulation; Projection; Pelton Bucket
JOURNAL NAME:
Energy and Power Engineering,
Vol.5 No.4B,
October
14,
2013
ABSTRACT: In order to simulate the complicated unsteady flow in Pelton bucket, it is necessary to apply the animated cartoon approach. In this paper, a free jet and the inner surface of a bucket is described by boundary fitted grid (BFG) with non-orthogonal curvilinear coordinates. The water flow is discretized in space and time for CFD (computational fluid dynamics). The moving grids of water film are successfully projected onto the bucket’s inner surface by a projection algorithm. The visualization result of the jet landing on bucket’s surface and the unsteady flow in the rotating buckets in 3D verifies the effectiveness of the proposed method.