摘要
针对倾转旋翼,开展了悬停及巡航状态气动特性的风洞试验和数值模拟研究。试验中,采用六分量天平和扭矩天平,测量了悬停和巡航状态下的旋翼拉力和扭矩,获得了一些倾转旋翼悬停效率和巡航效率的试验数据,验证了设计的倾转旋翼的气动性能。为了分析流场特征,采用运动嵌套网格方法,通过求解NS方程对倾转旋翼流场进行数值模拟,并开展了数值模拟与风洞试验的相关性对比分析研究,验证了数值模拟方法的有效性。同时,获得了桨叶表面压力、桨尖涡以及诱导速度分布特性。
The wind tunnel test and numerical simulation of the aerodynamic characteristics of the hover and cruising state are carried out for tilting rotors. In the experiment, six-component balance and torque balance were used to measure the rotor thrust and torques in hovering and cruising conditions. Experimental data of some hovering efficiency and cruise efficiency of tilting rotors were obtained, and the aerodynamic performance of the designed rotor was verified. To analyze the characteristics of the flow field, the moving overset grid method is adopted to simulate the flow field of the tilting rotor by solving the NS equation. The correlation analysis between numerical simulation and wind tunnel test is carried out to verify the effectiveness of the numerical simulation method. At the same time, the distribution characteristics of the blade surface pressure, the tip vortex and the induction velocity are obtained.
作者
李尚斌
林永峰
樊枫
LI Shang-bin;LIN Yong-feng;FAN Feng(Science and Technology on Rotorcraft Aeromechanics Laboratory,China Helicopter Research and Development Institute,Jingdezhen,Jiangxi 333000,Chin)
出处
《工程力学》
EI
CSCD
北大核心
2018年第6期249-256,共8页
Engineering Mechanics
基金
国家863项目(2012AA112201)
航空支撑项目(61901010402)
关键词
倾转旋翼
风洞试验
数值模拟
悬停效率
巡航效率
tilt rotor
wind tunnel test
numerical simulation
figure of merit
cruise efficiency
