Second Order Steady Drift Forces and Yaw Moment on Multiple Cylinders in Waves and Slow Current
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- Sunahara Shunji
- 東海大学海洋学部船舶工学科
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- Kinoshita Takeshi
- 東京大学生産技術研究所
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- Bao Weiguang
- 東京大学生産技術研究所
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- Shoji Kuniaki
- 東京商船大学
Bibliographic Information
- Other Title
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- 潮流と波浪の共存場における円柱列に働く2次の定常波漂流力とヨーモーメント
- チョウリュウ ト ハロウ ノ キョウゾンバ ニ オケル エンチュウレツ ニ ハ
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Abstract
Hydrodynamic forces including a wave drift damping for a slow drift motion of a four-column platform are investigated, both experimentally and theoretically.<BR>It is well known that the 2nd order hydrodynamic forces acting on the marine structures composed of multiple cylinders in both current and waves are significantly influenced by the interaction between cylinders, and extremely vary with the wave number ka.<BR>We measured the 2nd order wave forces and moment acting on a four-column platform model, in both slow current and regular wave trains of various incident angles. The experimental results were compared with the results of semi-analytical solutions based on the potential flow theory. In this solution, the interactions between cylinders are represented by additional waves emitting form adjacent cylinders towards the cylinders under consideration, and the drift forces as well as the yaw moment are evaluated by the far field method.<BR>It was confirmed that the yaw moment is significantly induced by oblique waves and current, and that those phenomena are well explained by the theory.
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 1997 (182), 255-265, 1997
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
- 1390001204095951360
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- NII Article ID
- 110003885525
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- NII Book ID
- AN00194094
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- ISSN
- 18842070
- 05148499
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- NDL BIB ID
- 4402114
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- Data Source
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- JaLC
- NDL
- Crossref
- NDL-Digital
- CiNii Articles
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- Abstract License Flag
- Disallowed