低速风洞试验腹撑支架干扰分析

支架干扰修正在风洞试验数据修正体系中是很重要的环节,支撑系统对整个风洞流场的干扰是不可避免的,有些气动数据的测量值甚至会严重偏离真实结果,所以支架干扰修正方法一直是风洞数据处理的关键。常规的低速风洞试验一般采用腹撑支杆,对于支架干扰的修正一般采用试验映像两步法。对某型运输飞机低速风洞试验的支架干扰修正进行分析,数值模拟了支架对风洞流场环境的影响,研究了现行风洞数据支架干扰修正体系。

Research of Low-Speed Wind Tunnel Ventral Support Interfere

It is an important part that support interfere correction in the wind tunnel test correction system,the support interfere of wind tunnel airflow is inevitable,even the measure of some parameters could far warp to real,so the method to correct support interfere is the key of wind tunnel data correction. The ventral support is normal used in low speed wind tunnel test,two-steps imaging method works at correction. We analyse the support correction of a low speed wind tunnel test about the certain transport airplane,numerical simulate the influence of the support to wind tunnel airflow,research the current wind tunnel support correct system.