摘要
We study the flow characteristics of supercritical airfoil; we have tested some classic examples to explore the flow mechanism of multi-bump technology and to study the characteristics of drag reduction by taking advantage of Computational Fluid Dynamics (CFD) method. We analyze the flow mechanism of multi-bump and then adjust the location and the geometry of multi-block. We find that not only the bump near the shock can reduce the wave drag but also the bump located near the leading-edge can improve the flow properties of airfoil. We applied multi-bump technology to RAE2822, and we find that the multi-bump technology can get more drag reduction, and that the total drag reduction can reach 11.5%.
| 源语言 | 英语 |
|---|---|
| 页（从-至） | 517-521 |
| 页数 | 5 |
| 期刊 | Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University |
| 卷 | 31 |
| 期 | 4 |
| 出版状态 | 已出版 - 2013 |