矩形潮流能水轮机性能研究  

Study on properties of rectangular tidal turbine

作　　者：陈展[1] 马勇[1] 张亮[1] 苏国卿[1] 

机构地区：[1]哈尔滨工程大学海洋可再生能源研究所,黑龙江哈尔滨150001

出　　处：《华中科技大学学报（自然科学版）》2013年第6期128-132,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：中央高校基本科研业务费专项资金资助项目(HEUCF130112);国家科技支撑计划资助项目(2008BAA15B04)

摘　　要：为了有效地利用潮流能,设计了一种适合于中低流速、容易实现大型化的新型潮流能发电转换装置——矩形潮流能水轮机.基于矩形水轮机的设计,采用数值模拟的方法,分析了密实度、叶片安装摆角、流速等参数对水轮机性能的影响,并对叶片间流场扰动进行了研究.结果表明:叶片数(密实度)和叶片安装方式对矩形水轮机的获能特性和推力特性产生较大影响,通过调节叶片数和安装摆角可以改善水轮机的能量利用效率;来流是影响矩形水轮机工作性能的外在因素,在叶片数和安装摆角确定的情况下,来流不仅可以改变矩形水轮机的工作速比区间,而且还直接影响着矩形水轮机的功率、推力特性;叶片在迎流面和背流面体现出不同的水动力特性,叶片在背流侧的能量捕获能力明显低于在迎流侧的,迎流侧叶片对流场的扰动是一种负面效应.A rectangular tidal turbine was designed which is suitable for low flow velocity and achieve large scale easily. The compactness, setting angle of blade, flow velocity and the disturbance of flow field between blades were numerically simulated. The results show that the compactness and the set- ting angle of blade will greatly impact the characteristics of thrust and the characteristics of capacita- tion, because that they can improve the efficiency of energy utilization. The flow is the external factor which influences the rectangular turbine performance, when compactness and the setting angle of blade are identified, flow can not only change the range of rectangular turbine working speed, but also affect the thrust characteristics and the capaeitation characteristics. The blades on the stream surface and the blades on the dorsal stream surface have different effects on hydrodynamic characteristics, and the capacitation of blades on the dorsal stream surface is lower than the blades on the stream surface, because that the blades on the stream surface are negative effect on the flow field.

关 键 词：潮流能 矩形水轮机 数值模拟 获能特性 推力特性 

分 类 号：TK730.2[交通运输工程—轮机工程]