摘要
基于CFD手段和参数辨识方法,总结归纳了俯仰方向各种动导数的计算方法,并以NACA0012翼型为例分别计算了强迫俯仰振动、俯仰转动和强迫沉浮运动对应的动导数,通过与风洞试验数据对比以及校验上述动导数之间的和差关系,证明了所述动导数计算方法的正确性,并给出了建议的动导数分离方法。
Based on computational fluid dynamics techniques and parameter identification method,the primary pitching dynamic derivatives calculation methods are summarized. The derivatives of the NACA0012 airfoil due to forced pitching oscillation,pitching rotation and forced fluctuation are calculated. By comparison with wind tunnel test and sum/difference checkout,the correctness of those methods is verified,and a dynamic derivative separation method is proposed.
作者
王海鹏
王方鹏
段赛玉
WANG Hai-peng;WANG Fang-peng;DUAN Sai-yu(System Engineering Application Center,Information Technology Corporation LTD.,AVIC,Beijing 100028,China)
出处
《航空计算技术》
2018年第4期70-73,92,共5页
Aeronautical Computing Technique
关键词
CFD
动导数
强迫俯仰振动
俯仰转动
强迫沉浮运动
C FD
dynamic derivative
forced pitching oscillation
pitching rotation
forced fluctuation
