摘要
采用自由涡系理论 ,用时间历程法逐步迭代计算直升机桨叶的环量和涡迹坐标。每一方位反复迭代直至尾迹稳定 ,从而得到其诱导下洗。最后以某直升机为例 ,将求出的诱导下洗用于桨叶气动载荷计算。
Coordinate of circulation and wake of helicopter blades are iterated step by step with the method of time history in the theory of free vortices. Each azimuth is re iterated until its wake is stable and its induced down wash flow is obtained. The down wash flow calculated in an example of a certain helicopter can be used for aerodynamic load calculation of blades. The calculated results coincide well with the test data.
出处
《航空学报》
EI
CAS
CSCD
北大核心
1996年第2期213-217,共5页
Acta Aeronautica et Astronautica Sinica
关键词
尾迹
机翼
旋翼空气动力学
直升机
wakes rotor aerodynamics iteration circulation distribution
