| 仿生减阻翼型的气动性能 |
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| 引用本文： | 张子良,张明明.仿生减阻翼型的气动性能[J].航空动力学报,2021,36(8):1740-1748. |
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| 作者姓名： | 张子良 张明明 |
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| 作者单位： | 中国长江三峡集团有限公司科学技术研究院,北京100038;中国科学院工程热物理研究所,北京100190 |
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| 基金项目： | 国家自然科学基金（51736008）； 中国科学院洁净能源先导科技专项（XDA21050303） |
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| 摘 要： | 利用一种基于滑移边界理论的仿生肋条结构的模化方法，对仿生减阻翼型的气动性能开展了数值模拟研究。结果显示:肋条结构同时布置在翼型压力面和吸力面湍流区域时，仿生减阻翼型的阻力可降低1.73%~3.07%，升阻比可提高2.10%~4.08%，其中黏性阻力的减小是总阻力下降的主要原因。对流场分析表明，仿生减阻翼型的速度曲线出现一定抬升，使得湍流边界层中的黏性子层增厚，进而导致了仿生减阻翼型气动性能的提升。
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| 关 键 词： | 仿生肋条 减阻 肋条模化 气动性能 滑移边界 |
| 收稿时间： | 2020/11/13 0:00:00 |
Aerodynamic performance for bionic drag-reducing airfoil |
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| ZHANG Ziliang,ZHANG Mingming.Aerodynamic performance for bionic drag-reducing airfoil[J].Journal of Aerospace Power,2021,36(8):1740-1748. |
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| Authors: | ZHANG Ziliang ZHANG Mingming |
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| Institution: | 1. Institute of Science and Technology, China Three Gorges Corporation, Beijing 100038, China;2. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | By adopting a bionic riblet model based on the slip-boundary theory, the aerodynamic performance for the bionic drag-reducing airfoil was numerically investigated.The results suggest that the total drag of the bionic drag-reducing airfoil could reduce by 1.73%-3.07% and the lift-drag ratio could increase by 2.10%-4.08% when riblets are applied in turbulence regions of both pressure and suction surfaces.The main reason for the total drag reduction was attributed to the decrease of the viscous drag.Flow field analysis indicated that the velocity profile of the bionic drag-reducing airfoil had an uplift compared with the smooth airfoil,resulting in an increase of the viscous-sublayer thickness.The aerodynamic performance was then improved. |
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| Keywords: | bionic riblets drag reduction riblet model aerodynamic performance slip boundary |
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