摘要
为了合理地设计与选取电动飞机螺旋桨,最大限度降低电动飞机整体噪声,以某型电动飞机平直、后掠及尖型桨尖形状螺旋桨为研究对象,通过大涡模拟模型计算分析了3种螺旋桨在巡航和爬升两个典型状态下的一阶频率声压值,计算结果表明平直桨尖螺旋桨噪声最低,尖形桨尖螺旋桨最高。为了验证计算结果,制造了缩比模型并在空气动力研究院的FL-9风洞中进行了试验,结果表明计算结果与风洞试验结果吻合度较高,验证了大涡模拟在螺旋桨噪声计算中具有一定的工程应用价值,计算和试验结果都表明平直桨尖有助于进一步发挥电动飞机安静环保的优势。
To design and select the propeller and minimize the overall noise of electric aircraft,first-order frequency sound pressure values of three kinds of propellers in both the cruise state and climbing state are calculated and analyzed using the LES model.The results show that the noise of the flat tip propeller is the lowest and that of the sharp propeller is the highest.The calculation results are verified via a scale model made and tested in the FL-9 wind tunnel of AVIC Aerodynamics Research Institute.The test results show good agreement with the calculation results,illustrating good engineering application value of the large eddy simulation in propeller noise calculation.Both the calculation and the test results reveal that the flat tip is helpful in electric aircraft propeller noise control.
作者
刘远强
王艳冰
项松
王梦琪
LIU Yuanqiang;WANG Yanbing;XIANG Song;WANG Mengqi(College of Aerospace Engineering,Shenyang Aerospace University,Shenyang 110136,China;Liaoning General Aviation Academy,Shenyang 110136,China;Liaoning Ruixiang General Aircraft Manufacturing Co.,Ltd.,Shenyang 110136,China;School of Mechanical Engineering,Shenyang Aerospace University,Shenyang 110136,China)
出处
《航空学报》
EI
CAS
CSCD
北大核心
2021年第3期65-73,共9页
Acta Aeronautica et Astronautica Sinica
基金
辽宁省自然科学基金指导计划(2019-ZD-0225)
校引进人才科研启动基金项目(19YB08)
辽宁省教育厅重点攻关和服务地方项目(JTY2020161,JYT2020162,JYT19004)。
关键词
电动飞机
螺旋桨设计
气动噪声
大涡模拟
风洞试验
electric aircraft
propeller design
aerodynamic noise
large eddy simulation
wind tunnel test
