【作者】 孙永强；

【导师】 尹勇；

【作者基本信息】 大连海事大学 ， 交通信息工程及控制， 2011， 硕士

【摘要】 运用航海模拟器进行船舶通航安全论证,具有巨大的优势。它既可以增加船舶的通航安全性能,有效预估通航风险,合理降低工程试验、论证费用,减少不必要的经济损失;又可以优化航道,提高港口经济效益和竞争力,挖掘港口靠泊能力。在船舶操纵中,流会影响船舶运动。因此,在船舶通航论证过程中流场环境的设置对实验结果有着很大的影响,而航海模拟器中现有的流场插值计算方法不足以精确描述港区的流场分布,因此,有必要研究一种新的更精确的流场计算方法。针对此需求,本文在港口流场数值模拟方面做了一下几个方面的工作：1.研究了现有流场数值模拟方法,根据港口海底走势、岸线分布等地形特性,对比数值模型的优劣点,选取FVCOM三维数值模型来计算港口流场。并根据航海模拟器对流场的需求,编程实现了三维FVCOM数值模型中二维(垂向平均)外模的计算方法来计算二维单层流场的分布情况。2.实现了适用于模型计算的三角形网格。对比多种三角形划分方法选取Delaunay方法作为本文的网格划分方法,运用该方法实现了非结构三角网格划分,并使用局部优化过程方法对Delaunay三角形进行了优化,并剔除了不利于模型稳定性的非恰当三角形。3.验证了计算结果并将其集成到航海模拟器中。首先计算胶州湾M2分潮流场分布情况,然后将计算结果与实测数据进行对比,验证模拟结果可用于论证实验；最后将计算结果添加到航海模拟器中,并利用该结果进行了青岛港原油三期码头的安全通航论证。更多还原

【Abstract】 Using navigation simulator for vessel traffic safety has huge advantage. On the one hand, It can increase vessel’s navigational safety performance and reasonably reduce the project experiment expenses; On the other hand, It can optimize channel design and enhance the economic efficiency and competitiveness of harbor.In vessel’s maneuvering, fluid affects ship’s movement. So, the setting of current has a significant impact on the precise of demonstration experiment of vessel navigation safety. However, in the present navigation simulator, the current model used can’t accurately describe the current distribution of the port; therefore, it’s necessary to introduce new method of flow field with more precision. To this requirement, the main research contents and contributions of this paper are summarized as follows:1. Based on the research of present method of flow simulation, FVCOM is chosen to calculate flow of port, according to undersea trends, shoreline distribution etc. and considering the advantages of those numerical models. Then FVCOM’s 2D(vertically integrated)equations is used to compute the distribution of 2D current, to meet the requirement of navigation simulator.2. Triangle mesh is implements which are applied to calculate FVCOM. Delaunay method is used to divide triangle mesh. LOP is used to optimize triangle mesh and eliminate some inappropriate triangles3. The result of experiment is verified and integrated into navigation simulator. First of all, the flow of Jiao Zhou bay driven by the M2 is computed. Secondly, comparing the result with the measured data and verifying this result can be used in demonstration experiment. The last, integrating the result with navigation simulator in the experiment of conducting Qingdao crude oil wharf traffic safety.更多还原