文献类型：期刊文献

中文题名：基于黏性流理论对平板受波浪冲击的两相流数值研究

英文题名：Two-phase Numerical Examination of Wave Impact on a Horizontal Deck based on the Viscous Fluid Theory

作者：毛鸿飞[1];李芳成[1];吴光林[1];严谨[1]

机构：[1]广东海洋大学海洋工程学院

年份：2019

卷号：39

期号：4

起止页码：73

中文期刊名：广东海洋大学学报

外文期刊名：Journal of Guangdong Ocean University

收录：CSTPCD

基金：广东省自然科学基金(2017A030313275);广东海洋大学科研启动费项目(R19024)

语种：中文

中文关键词：数值模拟;波浪水槽;平板;冲击力

外文关键词：numerical simulation;wave tank;horizontal deck;slamming force

中文摘要：【目的】研究波浪作用下位于水面上方的刚性平板所受冲击力特征,讨论数值计算结果与实验结果的差异。【方法】基于黏性流理论,采用有限体积(VOF)方法建立两相流数值波浪水槽模型,对潜堤地形上波浪传播变形和淹没水平圆柱在波浪作用下受力问题进行数值验证,对平板受波浪冲击作用进行数值模拟,通过平板下表面测点上点压力数值结果特征分析以及与前人实验数据对比,讨论结果差别原因,分析结果特征形成机理。【结果】潜堤地形上波浪传播变形的数值结果和前人实验数据吻合较好;对于波浪作用下平板的受力,相比前人实验数据,冲击力数值结果更大,且呈现出更稳定的周期性特征,沿波浪传播方向平板上的冲击力先增大后减小。【结论】建立的数值模型对波浪与结构物相互作用问题的模拟有高的精确性和稳定性。

外文摘要：【Objective】This study focuses on the slamming forces on a rigid horizontal deck over free surface under wave action. The reasons for the discrepancies between the numerical results and the previous experimental data are discussed.【Method】A two-phase numerical wave tank model is developed based on the viscous fluid theory using the finite volume method. The accuracy of the NWT model is validated by considering wave propagation over a bar and wave force on a submerged horizontal circular cylinder. The pressure on the low surface of the horizontal deck under wave impact is studied compared with previous experimental results. The discrepancies among the results are found, corresponding reasons are analyzed, and the characteristic mechanisms of the pressure are revealed.【Result】The validation of wave propagation over a bar shows that the numerical results are in good agreement with the previous experimental data. The study on the slamming forces on the deck shows that the numerical results first increase, and then gradually decrease along the direction of wave propagation. Compared with the experimental data, the slamming forces predicted by the numerical simulation are larger and more stable in multiple periods.【Conclusion】The numerical model works well in simulating wave-structure interaction.