Numerical Simulation of Gust Response for UAV Airfoil
Based on unsteady Euler equations, dynamic response in vertical gust flow perturbation are investigated for the unmanned air vehicle (UAV) airfoil. The gridvelocity method has been introduced to simulate the gust influence. First, after applying this method to simulate typical NACA0006 airfoil gust response to a step change in the angle of attack, it shows that the indicial responses of the airfoil agree well with both the exact theoretical values and the calculated values in references. Furthermore, gust responses for the One-minus-cosine gust profile and gust leading a step change in the angle of attack have been analyzed for the quasi Global Hawk airfoiL It is found that the aerodynamic response of airfoil is obvious during the gust progress, and the design of gust alleviation method needs further investigation.
numerical simulation gust response airfoil unsteady flow aerodynamic characteristic
Xu Xiaoping Zhu Xiaoping Zhou Zhou Chang Min
National Key Laboratory of Science and Technology on UAV, Northwestern Polytechnical University,Xia The UAV Research institute, Northwestern Polytechnical University, Xian 710065, China
国际会议
2010 Asia-Pacific International Symposium on Aerospace Technology(2010 亚太航空航天技术研讨会 APISAT 2010)
西安
英文
403-406
2010-09-01（万方平台首次上网日期，不代表论文的发表时间）