An Application of Rankine Source Method for Unsteady Free Surface Flows
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- TAKAGI Ken
- 大阪大学工学部
Bibliographic Information
- Other Title
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- Rankine Source法による非定常波動問題の計算について
- Rankine Sourceホウ ニ ヨル ヒテイジョウ ハドウ モンダイ ノ
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Abstract
Rankine Source Method is applied for unsteady free surface flows in this paper. In order to clarify the radiation condition of Rankine Source Method, eigen values and eigen vectors of the matrix obtained from a discrete boundary integral equation are investigated. And it is found that the radiation condition is satisfied by introducing a small variable ε which is equivalent to the artifice due to Rayleigh. For a examination of the new radiation condition, a wave field induced by a periodic source under the free surface is calculated. Calculated results are in good agreement with analytical ones. Wave forces acting on a virtical circlar cylinder with forward speed are also calculated. Results suggest that the present method is applicable to the calculation of the 3-dimensional unsteady free surface flow around a ship with forward speed.
Journal
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- Journal of the Kansai Society of Naval Architects, Japan
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Journal of the Kansai Society of Naval Architects, Japan 213 (0), 21-29, 1990
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
- 1390282679473510528
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- NII Article ID
- 110003872955
- 20000323884
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- NII Book ID
- AN00349587
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- ISSN
- 2433104X
- 03899101
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- NDL BIB ID
- 3665290
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed