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| The effect of relative camber to the dynamic aerodynamic characteristics about pitching airfoils |
| Received:March 28, 2008 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20101015 |
| KeyWord:Micro Aerial Vehicle low Reynolds number incompressible flow the relative camber dynamic aerodynamic characteristic |
| Author | Institution |
| 冉景洪 |
中国航天空气动力技术研究院,北京 |
| 刘子强 |
中国航天空气动力技术研究院,北京 |
| 白鹏 |
中国航天空气动力技术研究院,北京 |
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| Abstract: |
| Numerical computations for Micro Aerial Vehicle (MAV) applications were conducted to analyze the effects of airfoil relative camber and its position to dynamic aerodynamic characteristics of airfoil with identical pitching rate at low Reynolds number. The dual —step Roe schema developed by Rogers was used to solve the incompressible Navier-Stokes equations revised by artificial compressibility method. Verification was done between the numerical results and Walker’s experimental results. Taking the length of the chord as characteristic length, at the low Reynolds number (Re=500, 5000 and 50000), the dynamic aerodynamic characteristics were researched about different values of maximum relative camber and position. The research results indicated that the effect of the latter is more obvious than the former in the paper, and the dynamic lift-drag ratio was greater at 40％ along chord than those of at 30％ or at 50％. |
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