摘要
本文推导了各向同性紊流速度及其任意阶梯度间的相关函数和频谱函数的一般表达式,并分析了频谱函数对空间频率的奇偶性。对现有文献和飞行品质规范中几个含糊不清的问题进行了阐述和澄情。对飞机纵向大气紊流响应进行了研究计算,得到了一些有意义的结论。
The general expressions of the correlation and spectrum functions between turbulent velocities and/or velocity-gradients for isotropic turbulence are derived. The odd-even nature of spectrum functions with regard to space frequency is analysed. Some confusing problems about atmospheric turbulence concerning the current literature and specifications of flying qualities are discussed and clarified. Finally, an example of the aircraft response in longitudinal motion to atmospheric turbulence is presented, and some conclusions of significance are drawn from this example.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1991年第5期A241-A248,共8页
Acta Aeronautica et Astronautica Sinica
关键词
大气紊流
频谱
飞机响应
atmospheric turbulence, turbulence spectrum, aircraft response.
