IMECH-IR  > 非线性力学国家重点实验室
On applicability of the Kutta-Joukowski theorem to low-Reynolds-number unsteady flows
Wang SZ(王士召); Zhang X(张星); He GW(何国威); Liu TS; Wang SZ(王士召)
Source Publication51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
2013
PagesAIAA 2013-0067
Conference Name51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
Conference DateJAN 07-10, 2013
Conference PlaceGrapevine, TX, United states
AbstractThe limitations of the Kutta-Joukowski (K-J) theorem in prediction of the time-averaged and instantaneous lift of an airfoil and a wing in low-Reynolds-number unsteady flows are examined. A general lift formula for a rectangular control volume is given in a very simple form in the framework of viscous flow theory, which provides a rational foundation for a direct comparison with the K-J theorem considered as a reduced case. Direct numerical simulations on the stationary and flapping flat plate and rectangular wing are conducted to assess the accuracy of both the K-J theorem and the general lift formula. In particular, the Lamb vector integral for the vortex force and the acceleration term of fluid for the unsteady inertial effect are evaluated as the main contributions to the unsteady lift generation of a flapping wing.
DepartmentLNM湍流
Funding OrganizationAmerican Institute for Aeronautics and Astronautics (AIAA)
ISBN9781624101816
URL查看原文
Indexed ByEI
Language英语
Document Type会议论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/48293
Collection非线性力学国家重点实验室
Corresponding AuthorWang SZ(王士召)
Recommended Citation
GB/T 7714
Wang SZ,Zhang X,He GW,et al. On applicability of the Kutta-Joukowski theorem to low-Reynolds-number unsteady flows[C]51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013,2013:AIAA 2013-0067.
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