潮流能水平轴水轮机叶片双向流固耦合特性分析  

Bidirectional fluid-structure interaction characteristic analysis on the blade of horizontal axis tidal turbine

作　　者：袁鹏[1,2] 徐孝辉 谭俊哲 张金辉[1] 于鹏鹏 王树杰 Yuan Peng;Xu XiaoHui;Tan Junzhe;Zhang Jinhui;Yu Pengpeng;Wang Shujie(College of Engineering,Ocean University of China,Qingdao 266100,China;Ocean Engineering Key Laboratory of Qingdao,Qingdao 266100,China)

机构地区：[1]中国海洋大学工程学院,山东青岛266100 [2]青岛市海洋可再生能源重点实验室,山东青岛266100

出　　处：《可再生能源》2020年第11期1557-1562,共6页Renewable Energy Resources

基　　金：国家重点研发计划项目(2018YFB1501903);山东省自然科学基金重大基础研究项目(ZR2017ZA0202)。

摘　　要：为了探究水轮机叶片在流固耦合条件下的性能,文章以20 kW潮流能水平轴水轮机为例,采用k-ωSST湍流模型和滑移网格,基于ANSYS软件下的System coupling模块对其进行了实际工况下的双向流固耦合计算,分析了叶片结构变化对叶片水动力学性能的影响规律,研究了流固耦合条件下叶片的强度特性,通过与不考虑流固耦合条件的计算结果进行对比,发现双向流固耦合条件下的叶片获能效率和上、下表面压差会有所降低。研究得到的结论可为潮流能水轮机叶片的设计提供参考。In order to investigate the performance characteristics of the blade under fluid-structure interaction conditions,in this paper,a case study about a 20 kW horizontal axis tidal turbine was presented based on the system coupling module of ANSYS software.By using the k-ωSST turbulence model and sliding mesh technique,the bidirectional fluid-structure interaction calculation of actual working condition was carried out,and the effects of blade structural changes on the hydrodynamic performance of the blade under actual working conditions were analyzed,as well as the strength characteristics of the structure under this condition.By comparing the calculation results without considering the fluid-structure interaction conditions,it is found that the blade energy efficiency and the pressure differences between the upper and lower surfaces will be reduced,the conclusions obtained from the study provide a reference for the design of the tidal turbine blade.

关 键 词：流固耦合 有限元 数值模拟 潮流能水轮机 叶片 

分 类 号：TK6[动力工程及工程热物理—生物能] P743.2[天文地球—海洋科学]