On applicability of the Kutta-Joukowski theorem to low-Reynolds-number unsteady flows

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	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)
会议录名称	51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
	2013
页码	AIAA 2013-0067
会议名称	51st AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition 2013
会议日期	JAN 07-10, 2013
会议地点	Grapevine, TX, United states
摘要	The 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.
课题组名称	LNM湍流
资助信息	American Institute for Aeronautics and Astronautics (AIAA)
ISBN号	9781624101816
URL	查看原文
收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48293
专题	非线性力学国家重点实验室
通讯作者	Wang SZ(王士召)
推荐引用方式 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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