柔性叶片水轮机数值模拟研究  

NUMERICAL SIMULATION ON HYDRODYNAMIC PERFORMANCE OF FLEXIBLE BLADE TURBINE DRIVEN BY TIDAL ENERGY

作　　者：王树杰[1] 赵龙武[1] 李冬[1] 鹿兰帅[1] 王超[1] 

机构地区：[1]中国海洋大学工程学院,青岛266100

出　　处：《太阳能学报》2011年第3期281-287,共7页Acta Energiae Solaris Sinica

摘　　要：分析柔性叶片结构和力学特性,建立了多节点动力学方程,提出了柔性叶片流固耦合的求解思路;结合实验研究,建立了3个转角位置的物理模型,采用UDF(User-Defined Function)控制动网格,实现不同转速下柔性叶片水轮机的数值模拟,研究了尖速比、弧弦比等对柔性叶片水轮机水动力特性的影响,数值模拟结果与实验值吻合较好。Flexible blade can change its shape to fit different streams. Multi-node model dynamic equation was set up to its structural and characteristic. Combined with experiments, three models were set up for different positions. Based on UDF （User-Defined Function） to control dynamic mesh, several different nmning speeds of turbine were simulated in 3D. With three different models the hydrodynamic performance of flexible blade turbine was obtained, and the effects of velocity-ratio and chord-arc-ratio were also analyzed. The experiments validate the effectiveness of numerical simulation.

关 键 词：水轮机 柔性叶片 动网格 获能系数 UDF 

分 类 号：TK031[动力工程及工程热物理]