消波减流及捕能柔性防护堤系统研究

发布时间：2018-01-15 01:06

本文关键词：消波减流及捕能柔性防护堤系统研究　出处：《浙江大学》2017年硕士论文　论文类型：学位论文

【摘要】：海洋能作为一种新型可再生清洁能源,可为世界经济科持续发展作出巨大贡献,海洋养殖资源对推动社会发展的刚性物质需求和粮食供应提供了必要的保障。现有海水生态养殖业多集中在港湾,大多采用机械化养殖方式,但港湾养殖如今已趋于饱和,且海洋生态养殖除了自身在结构设计、抗恶劣养殖环境性能、抗击风浪冲击性能等方面有缺陷,还存有养殖辅助装备供能较难等现实问题,针对这些问题本文主要研究了以下内容。分析海水生态养殖装备适用的实际海况,基于海洋环境物理学、海水运动特性、海洋水动力学等理论基础,重点研究实际海域中海浪、海流及潮流耦合作用机理,建立有效而准确的耦合流体模型。根据近海生态养殖海域实际情况,结合不同结构形式在耦合流体中的运动、受力及捕能效率,综合分析传统防波堤及海洋能捕获发电系统,提出新型的消波减流柔性防护系统,确定了防护系统主要由浮式HDPE管道及阻力型海洋能捕获装置组成,并理论分析了柔性防护系统的消流效果及捕能效率。基于模型相似准则,建立海洋能捕获叶轮的三维模型,并进行CFD模型仿真计算,通过实际实验室水池水动力测试,并构建相应的潮流能捕获测试实验系统,通过对实验结果的对比分析优化柔性防护系统。
[Abstract]:As a new type of renewable clean energy, oceanic energy can make a great contribution to the sustainable development of the World Economic Section. Marine aquaculture resources to promote the social development of rigid material demand and food supply to provide the necessary protection. The existing marine ecological aquaculture mostly concentrated in the harbour, most of them adopt mechanized aquaculture. But the harbor culture has become saturated now, and the marine ecological culture has defects in the aspects of structure design, anti-bad environment performance, resisting the impact of wind and waves, and so on. There are still some practical problems such as the difficulty of energy supply of aquaculture auxiliary equipment. In view of these problems, the following contents are mainly studied in this paper. The actual sea condition of marine ecological aquaculture equipment is analyzed, based on marine environmental physics. Based on the characteristics of sea water motion and marine hydrodynamics, the coupling mechanism of ocean wave, current and tidal current in actual sea area is studied. To establish an effective and accurate coupled fluid model. According to the actual situation of offshore ecological culture sea area, combined with the different structural forms in the coupled fluid movement, force and energy capture efficiency. Based on the analysis of traditional breakwater and marine energy capture power generation system, a new flexible protection system for wave dissipation and current reduction is proposed. It is determined that the protection system is mainly composed of floating HDPE pipeline and resistance type oceanic energy capture device. Based on the model similarity criterion, the three-dimensional model of ocean energy capture impeller is established, and the simulation calculation of CFD model is carried out. Based on the hydrodynamic test of the laboratory pool and the corresponding tidal current energy capture test system, the flexible protection system is optimized by comparing and analyzing the experimental results.
【学位授予单位】：浙江大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S95;P751

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