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中文摘要：
针对大连湾人工岛的建设预案，在人工岛多种长度及宽度的组合条件下，运用MIKE21 flow model模块进行人工岛建设前、后的海湾流场及污染物扩散运动模拟，探讨研究嵌入人工岛后海湾水体交换、污染物扩散及污染物存留率的变化规律，进而评价人工岛对海湾水环境的影响。在不同的人工岛功能定位前提下，综合考虑人工岛和水环境的诸多因素，分别给出了可供规划参考的人工岛推荐方案。
英文摘要：
Based on the plan to build an artificial island in Dalian Bay, considering a variety of artificial islands in the combination of length and width conditions, and using MIKE21 flow model to simulate the Gulf flow field and pollutant dispersion before and after the construction of the artificial island, this paper studies water exchange, pollutant dispersion and retention rate in the Gulf, and then evaluates the impact of wa- ter environment by the artificial island in the Gulf. Considering different functions and factors of the artificial island and the water environment, recommended artificial islands are given for planning.
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