Design of Supercavitating Propellers Using a Vortex Lattice Method
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- Kudo Tatsuro
- 運輸省船舶技術研究所推進性能部
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- Ukon Yoshitaka
- 運輸省船舶技術研究所推進性能部
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- Kurobe Yuzo
- 運輸省船舶技術研究所推進性能部
Bibliographic Information
- Other Title
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- 渦格子法によるスーパーキャビテーティング・プロペラの設計
Abstract
This paper describes a rigorous design method for supercavitating propellers (SCPs). In a previous paper, the circulation distribution and hydrodynamic pitch were calculated by Goldstein's lifting theory. Lifting surface corrections were performed by two kinds of approximate methods. An improved correction method for camber effects was developed, using bi-parabolic polynomials. The correction for pitch including cascade effects was also made using a simple empirical formula obtained from series tests. In the present paper, the lifting surface correction was directly performed using a vortex lattice method. A more accurate circulation distribution was used, which was calculated by Lerbs' lifting line theory.<br>Three SCPs were designed, manufactured and tested in a large cavitation tunnel at the Ship Research Institute. They all generated the required thrust at the design point except the one designed for a higher load condition. The efficiencies obtained are reasonably high for all propellers. It is concluded that the present design method is one of the most promising and reliable tools for designing high performance SCPs.
Journal
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- Journal of the Society of Naval Architects of Japan
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Journal of the Society of Naval Architects of Japan 1994 (175), 47-56, 1994
The Japan Society of Naval Architects and Ocean Engineers
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Details 詳細情報について
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- CRID
- 1390001204093796992
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- NII Article ID
- 130001347758
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- ISSN
- 18842070
- 05148499
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed