| A Numerical Study on the Asymmetric Water Entry of A Wedge Section |
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| 作者姓名： | M.S.Seif S.M.Mousaviraad S.H.Saddathosseini |
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| 作者单位： | DepartmentofMechanicalEngineering,SharifUniversityofTechnology,11365-9567Tehran,Iran |
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| 摘 要： | The effect of the asymmetric water entry over a submerged part of a ship on the hydredynamic impact is investigated numerically. A wedge hotly is considered and the problem is assumed to be two-dimensional. The results of symmetric and asymmetric impacts are compared. The effect is found significant in the numerical simulation. The maximum hydrodynamic pressure at a heel angle of 10 degrees becomes about 95% more than that of the symmetric entry. The result of the present work proves the importance of asymmetrical hydrodynamic impact loading for structural design of a ship. Besides, the numerical procedure is not limited to a wedge type cross section and it is possible to apply it for any real geometry of ships and high-speed craft.
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| 关 键 词： | 水动力冲击 不对称性 涡流 船舶设计 结构强度 |
A Numerical Study on the Asymmetric Water Entry of A Wedge Section |
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| M.S.Seif S.M.Mousaviraad S.H.Saddathosseini.A Numerical Study on the Asymmetric Water Entry of A Wedge Section[J].China Ocean Engineering,2004,18(4):595-604. |
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| Authors: | M S Seif S M Mousaviraad and S H Saddathosseini |
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| Institution: | M. S. Seif1,S. M. Mousaviraad and S. H. Saddathosseini Department of Mechanical Engineering,Sharif University of Technology,Tehran,Iran |
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| Abstract: | The effect of the asymmetric water entry over a submerged part of a ship on the hydrodynamic impact is investigated numerically. A wedge body is considered and the problem is assumed to be two-dimensional. The results of symmetric and asymmetric impacts are compared. The effect is found significant in the numerical simulation. The maximum hydrodynamic pressure at a heel angle of 10 degrees becomes about 95% more than that of the symmetric entry. The result of the present work proves the importance of asymmetrical hydrodynamic impact loading for structural design of a ship. Besides, the numerical procedure is not limited to a wedge type cross section and it is possible to apply it for any real geometry of ships and high-speed craft. |
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| Keywords: | asymmetric water entry hydrodynamic impact |
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