海岸港口工程海洋生态环境监测与指标优化

根据近些年来实际监测工作情况,阐述海岸港口工程海洋生态监测内容与指标优化等情况,为我国其他海岸港口工程监测提供可借鉴的经验。     

虚拟海洋环境中的舰船运动的仿真

采用源汇法和STF切片法,计算了在不同浪向下舰船横向运动的水动力模型系数和波浪扰动力(矩),并存入数据库.提出采用四阶龙格-库塔法求解舰船运动水动力模型的线性微分方程组,获得了舰船随时间变化的各自由度运动幅值.采用虚拟现实技术,创建了天空和海面波浪等三维海洋虚拟场景,实现了具有真实感的、随时间变化的三维舰船运动(横摇、艏摇、横荡)在该场景中的动态仿真.     

浅析三维仿真动画在海洋工程领域的应用

结合海洋半潜平台复杂场景动画制作,较好地介绍了三维动画仿真技术相关流程和技术应用,对于仿真设计新技术应用有借鉴作用。     

真实感海洋视景仿真中的图形技术

介绍了真实感海洋视景的组成和仿真中所采用的图形技术。从仿真的实时性和真实感出发,着重介绍了实体对象的建模、海空气候环境模型、海洋自然环境模型及海洋场要素的可视化,并研究了提高仿真实时性所采用的光照模型和LOD模型与多级纹理映射相结合的方法。这些算法可以实现动态、逼真的三维真实感海洋环境,方法简单、实用。     

海岸和海洋工程国际会议(英文)

Zurich, Switzerland, July 30-31, 2013 The XXXIV. International Conference on Coastal and Ocean Engineering aims to bring together leading academic scientists, researchers and scholars to exchange and share their experiences and research results about all aspects of Coastal and Ocean Engineering, and discuss the practical challenges encountered and the solutions adopted.     

In Political Seas: Engaging with Political Ecology in the Ocean and Coastal Environment

The world’s oceans and coasts are awash in a sea of politics. The marine environment is increasingly busy, changing, and a site of degradation, marginalization, injustice, contestation and conflict over declining resources and occupied spaces at local to global scales. Themes of political ecology, such as power and politics, narratives and knowledge, scale and history, environmental justice and equity, are thus salient issues to understand in ocean and coastal governance and management. This subject review examines research on these themes of political ecology in the ocean and coastal environment and reflects on how the insights gained might be applied to governance and management. Political ecology provides important insights into: the influence of power in ocean management and governance processes; the manner in which narratives, knowledge, and scale are used to legitimize and shape policies and management efforts; the effects of historical trajectories on present circumstances, options, and practices; and the nature of inequities and environmental injustices that can occur in the marine environment. Moreover, ocean and coastal researchers, practitioners, and decision makers ought to engage with the political processes and injustices occurring in the ocean. Moving from critical insights to constructive engagements will ensure that political ecology helps to plant seeds of hope in the Anthropocene ocean.     

海洋工程桩-桶基础设计及颗粒流数值模拟

提出了新型的桩 桶基础的设计概念,并进行了上拔荷载作用下的数值模拟试验。桩 桶基础是桩和桶的结合,结合了桩基础、桶基础在海洋工程中体现的各自优势。通过颗粒流理论和PFC2D程序,应用细观力学的方法对上拔荷载作用下的桩 桶基础进行了模拟试验,研究了桩 桶基础在客观存在上拔荷载过程中土颗粒的分布及变化、土颗粒的位移与变化,基础的上拔位移与时步关系,土体受上拔荷载影响区域的范围及其变化。根据土颗粒的分布、颗粒的结构、颗粒的位移及其变化,基础位移与时步曲线的凸、凹变化表明了土体的稳定与破坏,判定了基础上拔时的土中滑动破坏面为锥体,综合确定了极限上拔承载力,对基础受荷过程中土颗粒细观结构变化,针对颗粒流仿真试样的细观力学特征与宏观力学响应进行了初步研究并揭示了一些规律。     

High Resolution Ship Hydrodynamics Simulations in Open Source Environment

The numerical simulation of wake and flee-surface flow around ships is a complex topic that involves multiple tasks： the generation of an optimal computational grid and the development of numerical algorithms capable to predict the flow field around a hull. In this paper, a numerical framework is developed aimed at high-resolution CFD simulations of turbulent, free-surface flows around ship hulls. The framework consists in the concatenation of ＂tools＂, partly available in the open-source finite volume library OpenFOAM. A novel, flexible mesh-generation algorithm is presented, capable of producing high-quality computational grids for free-surface ship hydrodynamics. The numerical frame work is used to solve some benchmark problems, providing results that are in excellent agreement with the experimental measures.     

2015 2nd International Conference on Coastal and Ocean Engineering （ICCOE 2015）

The 2015 2nd International Conference on Coastal and Ocean Engineering （ICCOE 2015） will be held during April 6-7, 2015 in Kyoto, Japan. ICCOE 2015, is to bring together innovative academics and industrial experts in the field of Coastal and Ocean Engineering to a common forum.