Vortex Gust Interactions with Oscillating Joukowski Airfoil
Vortex Gust Interactions with Oscillating Joukowski Airfoil
复制标题
涡旋阵风与振荡的尤科夫斯基翼型的相互作用
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
Huansheng Chen
中科院分区：
文献类型：
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作者：
Joukowski Airfoil;Huansheng Chen
本文对简谐运动中的线涡与Joukowski翼型的动力相互作用进行了解析和数值模拟。本文从二维无粘势流理论出发，导出了固定翼型和升沉翼型的涡运动方程和翼型上的流体力方程，尾缘涡量的连续脱落用修正的Brown和Michael方程模拟。特别注意的是平板翼型的极限情况下，无论是固定的或规定的谐波运动。这项工作超出了这些限制，包括翼型厚度和弯度对来流涡流路径的影响，以及涡流场和翼型规定的谐波运动之间的动态相互作用。
The dynamic interactions between a line vortex and a Joukowski airfoil in harmonic motion are determined analytically and simulated numerically. The equations of vortex motion and the fluid forces on the airfoil are derived from two-dimensional inviscid potential flow theory for fixed and heaving airfoil configurations, and the continuous shedding of vorticity from the trailing edge is modelled by the emended Brown and Michael equation. Special attention is paid to limiting cases of flat airfoils that are either stationary or under prescribed harmonic motions. This work extends beyond these restrictions to include the effects of airfoil thickness and camber on the incoming vortex path, and the dynamic interplay between the vortical field and the prescribed harmonic motions of the airfoil.