| 基于RANS方程的对拍翼推进器推进性能分析 |
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| 引用本文： | 于宪钊,苏玉民,王兆立.基于RANS方程的对拍翼推进器推进性能分析[J].船舶力学,2011,15(5):449-455. |
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| 作者姓名： | 于宪钊 苏玉民 王兆立 |
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| 作者单位： | 哈尔滨工程大学水下机器人技术国防科技重点实验室,哈尔滨,150001;哈尔滨工程大学水下机器人技术国防科技重点实验室,哈尔滨,150001;哈尔滨工程大学水下机器人技术国防科技重点实验室,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金资助项目(50879014,50579007) |
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| 摘 要： | 文章基于RANS方程,应用动网格技术,数值计算分析了一种基于地效应原理的对拍翼推进器的推进性能,探讨了来流速度,拍动频率、振幅对推进性能的影响。计算结果表明拍动频率越高、拍动振幅越大则推进器的推力越大,而推进效率则会随来流速度以及拍动振幅的增大而呈现先增大后减小的趋势;同时对比分析了双翼对拍与单翼拍动产生的推力和推进效率;这种推进器构造简单,仅通过简单的相对拍动就可产生垂直于机翼轴向的推力,通过机翼的旋转就可产生任意方向的推力,能够满足水下机器人做六自由度运动的推力需求。
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| 关 键 词： | 推进性能 仿生推进器 拍动翼 动网格 |
Propulsive performance analysis of a twin-flapping-foil propulsor based on RANS equations |
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| YU Xian-zhao,SU Yu-min,WANG Zhao-Li.Propulsive performance analysis of a twin-flapping-foil propulsor based on RANS equations[J].Journal of Ship Mechanics,2011,15(5):449-455. |
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| Authors: | YU Xian-zhao SU Yu-min WANG Zhao-Li |
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| Institution: | YU Xian-zhao,SU Yu-min,WANG Zhao-li (State Key Laboratory of Autonomous Underwater Vehicle,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | In this paper, the propulsive performance of a twin-flapping-foil propulsor in ground effect was calculated based on the RANS equations; dynamic mesh method was applied in numerical calculation. The calculation included the effects of the number of foils (single versus double), freestream velocity, flapping frequency and amplitude to the propulsive performance. Numerical calculations showed that the thrust increased with the increasing of flapping frequency and amplitude, but when the freestream velocity or... |
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| Keywords: | propulsive performance biological propulsor flapping foil dynamic mesh |
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