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| 1 | 轴流悬浮式水轮机抗倾覆性仿真研究显示文摘基于CFD软件,采用有限体积法,以及固定式轴流水轮机构造原理与可根据海流方向做自适应调整的轴流、悬浮式潮流能水轮机结构,通过数值仿真,开展了悬浮式水轮机系统在数种工况下的纵向方向抗倾覆稳定性分析。对比了不同流速与不同倾向角之间的共30种组合工况,分析了流速与倾向角对水轮机总纵力矩的影响,发现在不同工况下,该悬浮式水轮机在纵向方向上抗倾覆性能良好,在各流速工况下,均能在小倾角范围内达到稳定平衡状态,纵向稳定状态工况下静水面平行线与水轮机中轴线夹角γ保持在2°~3°左右。本文研究结果可为轴流悬浮式水轮机的抗倾覆稳定性计算提供一定参考。 | 赵宗文 刘羽 张国辉 陈正寿 赵春慧 | 2016 | 海岸工程2016，35，2： | 1 |
| 2 | Experimental and numerical study of the adsorption performance of a vortex suction device using water-swirling flow显示文摘An electrically activated underwater suction device is designed to form an amazing amount of negative pressure by generating water swirling flow,which can make underwater wall-climbing robot stick to the wall surface allowing a ground clearance.For the purpose of a full understanding of the mechanism of the suction device,a series of experimental tests are carried out and a computational fluid dynamics(CFD)model is established.The results show that the suction force F is consistent between experimental tests and simulations.An insight into the flow phenomena of vortex suction device,including spatial velocity and pressure distribution,is given through numerical simulation analysis.Furthermore,the crucial parameters,i.e.,the rotation speedωand gap clearance h,are studied.Then the relationships of F-ωand F-h are clarified.It reveals that with the increasing of rotation speed,the suction force increases quadratically.And with the increasing of gap clearance,the suction force increases firstly and then decreases,so that a reasonable design interval of gap clearance can be got to obtain the required suction force for the engineering applications. | ZHU YaWei ZHOU RenGuan YANG Gang ZHU YanQing HU DeAn | 2020 | Science China(Technological Sciences)2020，63，6： | 1 |
| 3 | Review on Tidal Energy Technologies and Research Subjects显示文摘Tidal current power is one of the promising and reliable renewable energies with the advantage of continuous and predictable resource. It can make stable electricity regardless of weather conditions or seasons all year around. The required technologies for tidal current power in the ocean have been developed for years and now recognized that it could be commercialized after intensive field tests and successful demonstrations. There are several tidal farm development projects in the world, such as the MeyGen project in UK with its commercialization at hand. However, various research subjects in the tidal current energy field are seeking improvements and industrialization of tidal current power in terms of economy and technical reliability. This paper introduces the resource assessment procedure of tidal energy that has been applied in Korea coastal regions. The key research subjects for tidal current power together with the interaction effect of multi-arrangement is described. Also, this paper is to introduce the research output of each subject such as turbine design, experimental validation, turbine interaction and wake, multi-array module, FSI (fluid-structure interaction), and duct application. | Chul Hee JO Su Jin HWANG | 2020 | China Ocean Engineering2020，34，1： | 0 |
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