| Unsteady Thin-Airfoil Theory Revisited: Application of a Simple Lift Formula | |
Liu TS; Wang SZ(王士召) ; Zhang X(张星); He GW(何国威); Liu, TS (reprint author), Western Michigan Univ, Dept Mech & Aerosp Engn, Kalamazoo, MI 49008 USA.
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| Source Publication | AIAA Journal
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| 2015-06 | |
| Volume | 53Issue:6Pages:1492-1502 |
| ISSN | 0001-1452 |
| Abstract | The physical foundations of unsteady thin-airfoil theory are explored in the general framework of viscous flows. The thin-airfoil lift formula is derived by using the simple lift formula that contains the vortex lift and the lift associated with the fluid acceleration. From a broader perspective, the thin-airfoil lift formula could be applicable even when the flow around an airfoil is moderately separated, from which the classical von Karman-Sears lift formula can be recovered as a reduced case. The quantitative relationship between boundary layer and lift generation is discussed. Direct numerical simulations of low-Reynolds-number flows over a flapping flat-plate airfoil are conducted to examine the accuracy and limitations of the thin-airfoil lift formula. |
| Subject Area | 力学 ; 流体力学 ; 空气动力学 |
| DOI | 10.2514/1.J053439 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000354386200008 |
| WOS Keyword | FORCES ; FLOWS ; MOMENT ; MOTION |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Aerospace |
| Funding Organization | This work was supported by the National Natural Science Foundation of China under project noumbers 10872201, 11232011, 11302238, and 11372331, and the National Basic Research Program of China (973 Program) under project number 2013CB834100 (nonlinear science). Tianshu Liu would like to acknowledge the hospitality received at Laboratory of Nonlinear Mechanics during his visit where he accomplished this work. The simulations were performed on TianHe-1. We would like to acknowledge the support from the National Supercomputer Center in Tianjin. |
| Department | LNM湍流 |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/58356 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Liu, TS (reprint author), Western Michigan Univ, Dept Mech & Aerosp Engn, Kalamazoo, MI 49008 USA. |
| Recommended Citation GB/T 7714 | Liu TS,Wang SZ,Zhang X,et al. Unsteady Thin-Airfoil Theory Revisited: Application of a Simple Lift Formula[J]. AIAA Journal,2015,53(6):1492-1502. |
| APA | Liu TS,Wang SZ,Zhang X,He GW,&Liu, TS .(2015).Unsteady Thin-Airfoil Theory Revisited: Application of a Simple Lift Formula.AIAA Journal,53(6),1492-1502. |
| MLA | Liu TS,et al."Unsteady Thin-Airfoil Theory Revisited: Application of a Simple Lift Formula".AIAA Journal 53.6(2015):1492-1502. |
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| Unsteady thin airfoi（1814KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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