【摘 要】
：
Two-dimensional focusing waves are generated and investigated by numerical method. The numerical model is developed by introducing the wave maker boundary on th
【机 构】
：
State Key Laboratory of Coastal and Offshore Engineering,Maritime and Ocean Engineering Research Ins
【基金项目】
：
教育部跨世纪优秀人才培养计划;国家自然科学基金;Korea Research Council of Public Science and Technology (Principal R&D Program)
论文部分内容阅读
Two-dimensional focusing waves are generated and investigated by numerical method. The numerical model is developed by introducing the wave maker boundary on the high-order spectral (HOS) method proposed by Dommermuth and Yue in 1987 and verified by theoretical and experimental data. Some cases of focusing waves considering different parameters such as assumed focusing amplitudes, frequency bandwidth, central frequency and frequency spectrum are generated. Characteristics of the focusing wave including surface elevations, the maximum crest, shift of focusing points and frequency spectra are discussed. The results show that the focusing wave characteristics are strongly affected by focusing amplitudes, frequency bandwidth, central frequency and frequency spectrum.
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