| S826叶型的非定场气动力特性的数值研究 |
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| 引用本文： | 陈榴,杨爱玲,戴韧.S826叶型的非定场气动力特性的数值研究[J].流体机械,2007,35(8):14-18. |
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| 作者姓名： | 陈榴 杨爱玲 戴韧 |
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| 作者单位： | 上海理工大学,上海,200093;上海理工大学,上海,200093;上海理工大学,上海,200093 |
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| 基金项目： | 上海市教委资助项目，上海市高校优秀青年教师后备人才培养计划 |
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| 摘 要： | 利用自行开发的二维非定常Euler方程的求解程序模拟S826叶型的外部非定常绕流,分别研究了在俯仰振动、平振以及俯仰与平振耦合的情况下叶型的气动特性.研究表明,随着折合频率,振幅值的增大,迟滞效应增强;平振与俯仰振动耦合时,当-90°≤φ≤90°时,气动力是激振力;当90°＜φ＜270°时,气动力为阻尼力.
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| 关 键 词： | 欧拉方程 S826叶型 非定常气动力特性 数值模拟 |
| 文章编号： | 1005-0329（2007）08-0014-05 |
| 修稿时间： | 2006-08-09 |
Numerical Investigation on Unsteady Aerodynamic Performance of S826 Airfoil |
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| CHEN Liu,YANG Ai-ling,DAI Ren.Numerical Investigation on Unsteady Aerodynamic Performance of S826 Airfoil[J].Fluid Machinery,2007,35(8):14-18. |
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| Authors: | CHEN Liu YANG Ai-ling DAI Ren |
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| Affiliation: | University of Shanghai for Science and Technology, Shanghai 200093, China |
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| Abstract: | The code based on two-dimensional unsteady Euler equation is used to simulate the configuration of the S826 airfoil which is oscillating. The unsteady performance of the airfoil is studied in the pitching, flapping and the coupling oscillation respectively. The results show that the aerodynamic hysteresis enhances with the increasing of the reduced frequency and oscillation amplitude. In the coupling oscillation, when the phase difference is bigger than 90 degrees and less than 270 degrees , the aerodynamic force becomes the damping force ;otherwise, the aerodynamic force is an exciting force. |
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| Keywords: | euler equations S826 airfoil unsteady aerodynamic performance numerical simulation |
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