自然层流翼套气动力测量飞行试验技术研究

Research on flight test technology for aerodynamic measurement of NLF wing glove

针对层流翼型设计验证需求,以翼套形式开展飞行条件下的气动力测量技术研究。通过关键参数确定、试验机选取和测量方法筛选等试验设计,并实施测量方法优化和试飞方法确定,形成自然层流翼套气动力测量飞行试验技术。通过飞行试验对某型自然层流翼套进行了边界层转捩位置、压力分布和翼型阻力测量,对该技术进行了验证。试验结果表明,该技术使用可靠,可为后续层流飞行试验提供参考。

For requirements of the laminar flow wing flight test,the aerodynamic measurement technology research under the flight condition was carried out based on the wing glove.Through the key variables determination,experimental airplane selection and aerodynamic measurement methods filtration,the measurement method was optimized,and the flight test method was determined,so as to determine the flight test technology of the NLF wing glove measurement.The boundary layer transition position,pressure distribution and drag coefficient measurement for a certain type of NLF wing glove were tested in flight to verify this technology.The flight test results show that the flight test technology is effective and reliable,and it can be taken as a reference for the laminar flight test.