Wave Attenuation Performance and the Influencing Factors of A Lower Arc-Plate Breakwater

来源 :中国海洋工程(英文版) | 被引量 : 0次 | 上传用户:seo57364
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Comprehensive experimental and numerical studies have been undertaken to investigate wave energy dissipation performance and main influencing factors of a lower arc-plate breakwater. The numerical model, which considers nonlinear interactions between waves and the arc-plate breakwater, has been constructed by using the velocity wave-generating method, the volume of fluid (VOF) method and the finite volume method. The results show that the relative width, relative height and relative submergence of the breakwater are three main influencing factors and have significant influence on wave energy dissipation of the lower arc-plate open breakwater. The transmission coefficient is found to decrease with the increasing relative width, and the minimum transmission coefficient is 0.15 when the relative width is 0.45. The reflection coefficient is found to vary slightly with the relative width, and the maximum reflection coefficient is 0.53 when the relative width is 0.45. The transmission and reflection coefficients are shown to increase with the relative wave height for approximately 85%of the experimental tests when the relative width is 0.19?0.45. The transmission coefficients at relative submergences of?0.04,?0.02 and 0 are clearly shown to be greater than those at relative submergences of 0.02 and 0.04, while the reflection coefficient exhibits the opposite relationship. After the wave interacts with the lower arc-plate breakwater, the wave energy is mainly converted into transmission, reflection and dissipation energies. The wave attenuation performance is clearly weakened for waves with greater heights and longer periods.
其他文献
期刊
During ice-breaking navigation, a massive amount of crushed ice blocks with different sizes is accumulated under the hull of an ice-going ship. This ice slides
The mechanisms of soil?structure interaction have drawn much attention in the past years in the installation and operation of jack-up platform. A bionic spudcan
The numerical method of lines (MOLs) in coordination with the classical fourth-order Runge?Kutta (RK(4, 4)) method is used to solve shallow water equations (SWE
为了探究梯级利用地下水储能的地源热泵空调系统能量利用率,基于分析理论建立了系统热力学数学模型,分析了蒸发温度和冷凝温度对新型地下水源热泵空调系统及其系统部件效率和
2016年7月25日,经国家标准化管理委员会批准,输血医学增设为临床医学二级学科.输血医学的重要职能就是保障和指导临床安全、科学、精准输血,减少输血不良反应.rn血小板具有复
According to the characteristics of submerged floating tunnel anchored by tension legs, simplifying the tube as point mass and assuming that the tension leg is
For the growth and departure of bubbles from an orifice, a free energy lattice Boltzmann model is adopted to deal with this complex multiphase flow phenomenon.
Owing to the complex environmental conditions, suspension could induce complicated forces on submarine pipelines and even cause vortex-induced vibration, result
目的 研究不同浓度二甲亚砜深低温保存实验犬血小板相关参数变化.方法 应用2%和5%二甲亚砜浓度对实验犬血小板进行-80℃深低温保存1~180 d不等,解冻后观察血小板计数(PLT)、平均