模态法在波浪能装置水动力学计算中的应用  

APPLICATION OF MODAL METHOD TO HYDRODYNAMIC CALCULATION OF WAVE ENERGY DEVICE

作　　者：张超[1,2,3] 游亚戈 王文胜[1,2] 叶寅[1,2] 王振鹏[1,2,3] Zhang Chao1,2,3, You Yage1,2, Wang Wensheng1,2, Ye Yin1,2, Wang Zhenpeng1,2,3(1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510460, China ; 2. Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Guangzhou 510460, China ; 3. University of Chinese Academy of Sciences, Beijing 100049, China)

机构地区：[1]中国科学院广州能源研究所,广州510070 [2]中国科学院可再生能源与天然气水合物重点实验室,广州510640 [3]中国科学院大学,北京100049

出　　处：《太阳能学报》2018年第9期2493-2498,共6页Acta Energiae Solaris Sinica

基　　金：中国科学院战略性先导科技专项A类(XDA13040201);国家自然科学基金青年基金(41406102)

摘　　要：采用模态法求解线性入射波作用下振荡浮子式波浪能装置的三维水动力学问题。对于无穷远处扩散条件转换成辐射面条件进行专门的考虑，即将流场分为内外两部分，外部域中求得的速度势和速度势的法向导数在内外域分界面上与内部域的解相匹配。根据该方法编制的程序对一些典型算例进行计算，与其他方法得到的结果较吻合。应用该计算方法还对振荡浮子式波浪能装置具有约束性的水动力学问题进行计算，计算结果可有效指导实际装置的设计及优化工作。Modal method is used for calculating three-dimensional hydrodynamic coefficients of wave power device performing harmonic oscillations due to linear waves in free surface. Special consideration has been given to the radiation boundary conditions on a cylinder surrounding the device. The cylinder divide flow field into two parts outside and inside. The velocity potential in the outer region of the cylinder is matched with the velocity potential in the inner region on the interface. To verify the correctness of the method, class examples in the reference are recomputed using computer program according to modal method and the obtained results are in good accordance with other methods. The method is also used for calculating hydrodynamic coefficients of device under the condition of constraint, and the result could instruct practice directly.

关 键 词：波浪能转换 水动力学 线性系统 模态分析 约束满足问题 

分 类 号：O353.2[理学—流体力学]