【摘要】 针对动升力翼飞艇模型在双翼浮升和大载重浮升情况下风洞测力实验的特殊性,系统地开展了实验模型、测力天平、过程控制与数据处理方法等研究。对实验结果进行了支架干扰修正、气流偏角修正、阻塞效应及升力效应修正,给出了两种飞艇模型的气动特性,提高了实验精度。更多还原

【Abstract】 A comparative experimental study of two similar winged airships is presented.The force measurement experiments are carried out in NF—3 low speed wind tunnel at Northwestern Polytechnical University.Due to the specialty of airship experiments,several experimental aspects such as test models,balance configurations,process control and data processing are presented in detail.Necessary corrections including side-slip angle,blockage effect and lift effect are implemented to increase accuracy.The aerodynamic characteristics of two airships are also discussed.更多还原