| Wave shoaling and diffraction in current over a mild-slope |
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| 作者姓名： | LI Yucheng LIU Deliang CHEN Bing LI Linpu |
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| 作者单位： | StateKeyLaboratoryofCoastalandOffshoreEngineering,DalianUniversityofTechnology,Dalian116024,China |
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| 摘 要： | The wave relative frequency in the coordinate system moving with current and the angle between the direction of wave propagation and that of current are computed based on the wave dispersion relation. The current field is computed by solving the depth averaged shallow water equations. The wave field is computed by solving the mildslope equation which has taken the current‘s effect into account. A numerical model is established using a finite element method for simulating the wave shoaling and diffraction in current over a mild-slope, and the numerical results are reasonable to compare with the experimental data.
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| 关 键 词： | 中斜率方程 波浪 流动参数 衍射 色散关系 |
| 收稿时间： | 2003/10/7 0:00:00 |
| 修稿时间： | 2004/1/20 0:00:00 |
Wave shoaling and diffraction in current over a mild-slope |
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| LI Yucheng,LIU Deliang,CHEN Bing,LI Linpu.Wave shoaling and diffraction in current over a mild-slope[J].Acta Oceanologica Sinica,2004,23(4):741-746. |
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| Authors: | LI Yucheng LIU Deliang CHEN Bing and LI Linpu |
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| Institution: | State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | The wave relative frequency in the coordinate system moving with current and the angle between the direction ofwave propagation and that of current are computed based on the wave dispersion relation. The current field iscomputed by solving the depth averaged shallow water equations. The wave field is computed by solving the mild-slope equation which has taken the currents effect into account. A numerical model is established using a finiteelement method for simulating the wave shoaling and diffraction in current over a mild-slope, and the numericalresults are reasonable to compare with the experimental data. |
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| Keywords: | wave current mild-slope equation diffraction |
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