Estimations of Hydrodynamic Forces Acting on Ships Advancing in the Carm Water and Waves by a Time-Domain Hybrid Method
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- Kataoka Shiro
- (株) 新来島どっく
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- Iwashita Hidetsugu
- 広島大学大学院工学研究科
Bibliographic Information
- Other Title
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- 静水中および波浪中を航走する船に働く流体力の時間領域ハイブリッド法による推定
- セイスイ チュウ オヨビ ハロウ チュウ オ コウソウ スル フネ ニ ハタラク リュウタイリョク ノ ジカン リョウイキ ハイブリッドホウ ニ ヨル スイテイ
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Abstract
A time-domain computation method based on the hybrid method is originally developed and applied to the wave-making problems of ships both in the carm water and in waves. The fluid domain is decomposed into the near field and the far field, and the space-fixed artificial surface like side-walls of a towing tank is employed to separate them. The Rankine panel method and the Green function method are applied to two domains respectively and the solutions in both domains are combined on the artificial surface. The former makes the present method flexible to the free-surface condition and later guarantees the radiation condition for any frequency. The use of the space-fixed artificial surface makes the theory free from the line-integral which usually appears along the intersection between the free-surface and the artificial surface when the moving artificial surface is used.<br>The method is applied to the steady and the unsteady wave-making problems of the modified Wigley model, Series-60 (CB=0.6) and Series-60 (Cb=0.8). Through the comparison of hydrodynamic forces between computed and measured, it is confirmed that the present method is very accurate and rational for any case.
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 2004 (196), 123-138, 2004
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
- 1390001204095368320
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- NII Article ID
- 10014498245
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- NII Book ID
- AN00194094
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- ISSN
- 18842070
- 05148499
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- NDL BIB ID
- 7265240
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed