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Simulation of Unsteady Water Film Flow on Pelton Bucket

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DOI: 10.4236/epe.2013.54B010    4,603 Downloads   5,606 Views   Citations
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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.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

S. Na, "Simulation of Unsteady Water Film Flow on Pelton Bucket," Energy and Power Engineering, Vol. 5 No. 4B, 2013, pp. 51-55. doi: 10.4236/epe.2013.54B010.

References

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[4] A. L. Zheng, F. Q. Han, Y. X. Xiao, et al., “Unsteady Interference between Jet and Rear Surface of Rotating Buckets in Pelton Turbine,” 8th Asian International Fluid Machinery Conference, Yichang, China, 2005, pp. 302-310.
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