面向过失速机动的风洞动态试验相似准则探讨

为进行更加准确的风洞试验，讨论了针对过失速机动的风洞动态试验的相似准则问题。从六自由度运动方程推导出了进行动态风洞试验需要满足的运动相似参数；从N—S方程中得到满足流动相似的相似参数。针对不同类型的风洞动态试验，提出了具体对应的相似参数作为主要的模拟量。得到的结论可以为风洞动态试验参数选择提供参考。

Similarity criterion of the wind tunnel test for the post-stall maneuver

The present work investigates the similarity criterion of the wind tunnel test for the post-stall maneuvers, in order to conduct a more exact test. The similarity parameters of the motion have been derived based on the six degree of freedom kinematic equation. At the same time, the similarity parameters, which impact the simulation of the fluid field, also have been derived based on the N-S equation. After that, the specific similarity parameters are offered for the different type of the wind tunnel tests to simulate the motion and the fluid field The results are helpful when choosing the similarity parameters of the dynamic tests in a wind tunnel.