【作者】 栾英妮；

【导师】 张华庆；

【作者基本信息】 哈尔滨工程大学 ， 港口、海岸及近海工程， 2011， 硕士

【摘要】 海岸工程建设中,波浪条件是影响工程平面设计、防浪建筑物型式与规模,决定工程造价和安全的重要因素,因此应对波浪传播规律进行深入研究。波浪研究常用的手段有数值模拟和物理模型试验,这些手段已解决了大量工程实际问题,但随着海岸工程的深水化、大型化,出现了一些新的结构物型式,现有的研究成果与水平以及物理模拟设备等难以满足结构设计与验证的需求,大比尺波浪水槽应运而生。大比尺波浪水槽的设计与应用在国内属于空白,其合理的尺度和功能设计有待研究。如何能使数值模拟与物理模型试验相互配合,更好地应用于工程实际,是需要深入研究的。本文包括以下几方面内容：1、在查阅大量国内外文献的基础上,围绕Boussinesq方程为基础的平面二维波浪数学模型,对现有近岸波浪数学模型的应用与发展进行综述。对以改进型Boussinesq方程为基础的MIKE21 BW模型和以高阶Boussinesq方程为基础的模型进行了控制方程、数值解法、边界处理等方面的研究分析。2、参加“山东LNG天然气码头波浪整体模型试验”的实际工程研究,完成模型设计与制作、多方案试验、数据采集与规律性分析等工作。同时,在物理模型试验基础上,建立平面二维波浪数学模型进行数值计算,对比计算与实测结果,以物理模型试验成果为论证条件,对波浪入射条件和孔隙值参数设置两个方面进行分析,并总结变化规律。3、结合交通运输部天津水运工程科学研究院之“大比尺波浪水槽前期研究项目”中“大比尺波浪水槽特征大波模拟技术研究课题”,进行水槽设计的验证工作。通过水槽改造,建立与大比尺波浪水槽设计相同的试验小水槽,缩小比尺为10。在小水槽中进行多组次试验,验证大比尺波浪水槽中造波技术、波浪在水槽中的传播变化以及水槽底坡设计的合理性。4、以高阶Boussinesq方程为基础,建立与试验小水槽条件相同的波浪数学模型,针对物理模拟试验中发现的问题进行分项计算分析。更多还原

【Abstract】 As significant parameter in construction of marine engineering, wave condition is the determinant of the project layout design, type and size of anti-wave structures, construction costs and engineering safety, so it is necessary for us to have an in-depth study on wave propagation. Mathematical simulation and physical model test are the most commonly used in the research. However, there are some new-type structures appearing with the large-scale, deeper-water of the marine engineering, the existing physical simulation equipments and experience can not meet the research needs gradually, so the Large Wave Flume will be structured. And the research about the large flume in China is blank, the structural design and function design should be studied. At the same time, it is worth studying that how to use the physical and numerical simulation company to get more accurate results in engineering applications. The details of this paper are as follows:1. Based on thorough study of both domestic and international paper, give a generalization of the offshore mathematical model, especially those including the Boussinesq equation. The paper also analyzes the numerical solution, wave generation, the border condition of a model which is based on advanced Boussinesq equation and higher order Boussinesq equation.2. By participate in "Shandong LNG gas terminal 3D wave model test" research, like model design and production, schemes tests, data collection and analysis are completed. A 2D wave mathematical model of finite difference method with the rectangular nets is setup on the basis of 3D test. On the comparison of the numerical and physical simulation results, analysis in wave incidence condition and porosity are carried out, and some discipline is giving.3. Combine the research topic of "simulation technique of huge wave in Large Wave Flume" research of Large Wave Flume, a 3D simulation flume with scale of 1:10 is established based on the design of the flume. Multi-group trials are carried out in the simulation flume for the verification of large wave flume design.4. A numerical wave model on higher order Boussinesq equation is used to numerical calculation and verification with 3D flume test.更多还原