侧流对平流层飞艇螺旋桨气动载荷的影响  

Impact of cross-flow on the aerodynamic load of propeller for stratospheric airship

作　　者：聂波 王海峰[1] 杜晨曦 马界祥 NIE Bo;WANG Haifeng;DU Chenxi;MA Jiexiang(School of Aeronautics,Northwestern Polytechnical University,Xi’an 710072,China;The First Aircraft Institute,Aviation Industry Corporation of China,Limited,Xi’an 710089,China)

机构地区：[1]西北工业大学航空学院,西安710072 [2]中国航空工业集团有限公司第一飞机设计研究院,西安710089

出　　处：《航空动力学报》2025年第2期173-181,共9页Journal of Aerospace Power

摘　　要：利用滑移网格技术和脱体涡模拟(DES)的非定常数值方法,采用螺旋桨缩比模型风洞试验验证了方法的有效性,完成了不同侧流状态下气动载荷数值计算。结果表明:螺旋桨旋转的瞬时气动载荷系数呈现周期性的非定常特性,沿桨叶径向的挥舞力矩随侧流偏角递增明显,在30°侧流偏角时瞬时值与轴向力矩相当,60°时超过轴向力矩2倍;随桨叶数增多,一个周期内的波动频率增加,四叶桨拉力和扭矩系数相对时均值的波动幅度比两叶桨分别缩减了76.6%和70.1%。所研究方法可为桨叶结构和相关支撑机构的设计提供有效的输入依据。The validity of sliding mesh technology and detached eddy simulation(DES)with nonsteady numerical methods was verified by wind tunnel tests of a scaled propeller model,and numerical calculations of aerodynamic loads under different cross-flow conditions were performed.The results showed that the instantaneous aerodynamic load coefficient of the rotating propeller exhibited periodic unsteady characteristics,and the flapping torque along the blade radius increased significantly with crossflow angle,with an instantaneous value equivalent to the axial moment at 30°,and more than twice the axial moment at 60°.Along with an increasing number of blades,the frequency of fluctuations within one cycle increased.Compared with the two-bladed propeller,the amplitude of the thrust and torque coefficients of the four-bladed propeller relative to their mean values was reduced by 76.6%and 70.1%,respectively.Research method can provide effective input basis for the design of blade structure and related support mechanism.

关 键 词：侧流 平流层飞艇 螺旋桨 滑移网格 脱体涡模拟 非定常 

分 类 号：V211[航空宇航科学与技术—航空宇航推进理论与工程]