| Ware Diffraction from A Vertical Cylinder with Two Uniform Columns and Porous Outer Wall |
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| 作者单位： | TENG Bin HAN Ling LI Yuchena
Professor. Slate Key Laboratory of Coastal and Offshore Engineering. Dalian University of Technology，Dalian 116023. P. R. China Graduate Student. State Key Laboratory of Coastal and Offshore Engineering. Dalian University of Technology.
Dalian 116023，P. R. China |
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| 基金项目： | 国家自然科学基金，国家自然科学基金 |
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| 摘 要： | —Based on a linear model of the pressure difference between two sides of a porous wall and thefluid velocity inside it.an analytic solution is established for wave diffraction from a cylinder with an outerporous column and an inner solid column.Numerical experiments are carried out to examine the effects ofthe wave force on a porous low-column cylinder and the wave elevations outside and inside the cylinderdue to the porous character of the outer column and the ratio between the radii of the inner and outer col-umns.The numerical results show that the increase in the coefficient of porosity of the outer column of adouble column cylinder will reduce the wave elevation around the cylinder and the wave load on it.The ra-dius of the inner column does not affect too much the wave elevation around the cylinder and the totalforce on the cylinder.
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Wave Diffraction from A Vertical Cylinder with Two Uniform Columns and Porous Outer Wall |
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| Authors: | TFNG Rin |
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| Abstract: | Based on a linear model of the pressure difference between two sides of a porous wall and the fluid velocity inside it, an analytic solution is established for wave diffraction from a cylinder with an outer porous column and an inner solid column. Numerical experiments are carried out to examine the effects of the wave force on a porous tow-column cylinder and the wave elevations outside and inside the cylinder due to the porous character of the outer column and the ratio between the radii of the inner and outer columns. The numerical results show tha the increase in the coefficient of porosity of the outer column of a double column cylinder will reduce the wave elevation around the cylinder and the wave load on it. The radius of the inner column does not affect too much the wave elevation around the cylinder and the total force on the cylinder. |
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| Keywords: | wave diffraction ware force porous structure cylinder |
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