不同因素对人工岛波浪绕射影响研究

发布时间：2018-06-21 20:06

本文选题：MIKE-BW + 人工岛　；参考：《海洋工程》2017年01期

【摘要】：为研究人工岛尺度变化和波浪方向分布对人工岛绕射波浪的影响,基于MIKE21-BW模型应用数值方法模拟人工岛波浪绕射过程。数值结果与Briggs等的物理试验结果的对比表明两者吻合较好,验证了模型的适用性。在规则波条件时,圆形人工岛绕射波浪的数值结果与线性波浪绕射理论解基本一致;采用该模型分别模拟了6种尺度的圆形人工岛、单向不规则波和9种方向分布θ_(max)、4种谱峰周期条件时绕射波浪分布情况。分析结果表明,圆形人工岛绕射系数随着尺度的增加,掩护区绕射系数随之减小;θ_(max)在10°~45°范围内,随着θmax的增大,绕射系数随之增大,θ_(max)在45°~75°内绕射系数变化较小;随着谱峰周期的增加,绕射系数随之增大。研究成果既为相关规范的完善提供了基础,也为相关工程设计提供了参考。
[Abstract]:In order to study the effect of the variation of artificial island scale and the distribution of wave direction on the wave diffraction of artificial island, the wave diffraction process of artificial island was simulated by using the MIKE21-BW model. The comparison between the numerical results and the physical test results of Briggs et al shows that the two results are in good agreement with each other, and the applicability of the model is verified. Under regular wave conditions, the numerical results of circular artificial island diffraction wave are in good agreement with the theoretical solution of linear wave diffraction. The distribution of diffracted waves under the four spectral peak period conditions of one direction irregular wave and nine directions distribution 胃-tir. The results show that the diffraction coefficient of circular artificial island decreases with the increase of scale, the diffraction coefficient of cover region decreases with the increase of scale, the diffraction coefficient increases with the increase of 胃 max in the range of 10 掳and 45 掳, and the diffraction coefficient of 胃 -max increases slightly in the range of 45 掳~ 75 掳. The diffraction coefficient increases with the increase of peak period. The research results not only provide a basis for the improvement of relevant specifications, but also provide a reference for related engineering design.
【作者单位】：中国海洋大学工程学院;三亚海航基础投资有限公司;
【基金】：山东省自然科学基金(ZR2013EEZ002)
【分类号】：P756.8;P731.22

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