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| 振动翼推进性能计算及试验研究 | |
| 引用本文： | 刘江鹓,杨向晖,陈庆任.振动翼推进性能计算及试验研究[J].船海工程,2012,41(4):67-70. |
| 作者姓名： | 刘江鹓 杨向晖 陈庆任 |
| 作者单位： | 1. 华中科技大学计算机科学与技术学院,武汉430074;中国舰船研究设计中心,武汉430064 2. 中国舰船研究设计中心,武汉,430064 3. 中国船级社武汉规范研究所,武汉,430022 |
| 基金项目： | 工信部高技术船舶科研重点项目“双体高速客货运输船关键技术研究” |
| 摘 要： | 采用非定常边界元法基于格林定理构建振动翼计算模型,讨论相关的构建过程、程序结构;采用时变尾涡面和时间步进法在时域中处理振动翼的尾涡存储效应,在尾涡面上应用等压Kutta条件并通过New-ton-Raphson法进行迭代求解,对在无限域中的振动翼水动力特性进行计算和研究;通过数值计算结果与试验数据对比,证实本方法的有效性。 |
| 关 键 词： | 振动翼 格林定理 非定常边界元法 时步迭代法 |
Computational and Experimental Research on Propulsive Performance of Oscillating Hydrofoil |
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| Authors: | LIU Jiang-yuan YANG Xianghui CHEN Qingren |
| Institution: | 1 School of Computer Science and Technology,Huazhong University of Science and Technology,Wuhan 430074,China; 2 China Ship Design and Research Center,Wuhan 430064,China; 3 Wuhan Rule and Regulation Research Institute,China Classification Society,Wuhan 430022,China) |
| Abstract: | An unsteady boundary element method(BEM) based on Green’s theorem was developed for the hydrodynamic analysis of 3D oscillating hydrofoils.The construction process and structure of program was discussed in detail.Memory effect of trailing vortex was resolved by means of the time-dependent trailing vortex sheet and the time-stepping scheme.The Kutta condition was satisfied on trailing vortex sheet,and Newton-Raphson method was used to carry out iterative computation.Then the hydrodynamic performance of oscillating hydrofoil which works in infinite fluid domain was investigated.The method proposed is proven to be an effective approach by the comparison between numerical results and experimental data. |
| Keywords: | oscillating hydrofoil Green’s theorem unsteady boundary element method time-stepping scheme |
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