倾转涵道倾转过渡阶段的非定常气动力

杨磊; 叶正寅

doi:10.13224/j.cnki.jasp.2015.01.022

倾转涵道倾转过渡阶段的非定常气动力

doi: 10.13224/j.cnki.jasp.2015.01.022

杨磊,
叶正寅

西北工业大学航空学院翼型叶栅空气动力学国防科技重点实验室, 西安 710072

详细信息

作者简介:
杨磊(1988-),男,河南郑州人,博士生,主要从事设计空气动力学研究.

中图分类号: V211.53
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- 文章访问数: 2211
- HTML浏览量: 4
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- 被引次数: 0
出版历程
- 收稿日期: 2013-09-12
- 刊出日期: 2015-01-28

Unsteady aerodynamic force of tilt ducted fan during transition period

National Key Laboratory of Science and Technology on Aerodynamic Design and Research, School of Aeronautics, Northwestern Polytechnical University, Xi'an 710072, China

摘要

摘要: 为研究倾转涵道动力装置在倾转过渡阶段的非定常气动力,使用基于滑移网格技术的非定常计算方法,利用基于内场信息和叶素理论的压力盘模型模拟风扇螺旋桨,通过求解Navier-Stokes(N-S)方程,对涵道风扇俯仰拉起过程进行数值模拟.结果表明:在倾转过程中涵道风扇非定常气动力的迟滞特性明显,俯仰角速度延迟了流场分离,增加了涵道风扇的升力和阻力;低速飞行时,涵道风扇在整个倾转过渡阶段气动性能优良;在高速大迎角飞行时,涵道风扇气动性能恶化,俯仰力矩曲线紊乱,不利于进行倾转过渡飞行.
- 倾转涵道飞行器 /
- 涵道风扇 /
- 非定常气动力 /
- 压力盘模型 /
- 滑移网格
Abstract: In order to study the unsteady aerodynamic force of the tilt ducted fan powerplant during transition period, a unsteady numerical simulation method based on sliding meshes was used. A disk model based on inner flow field information and blade element theory was utilized to simulate the fan propeller, and the Navier-Stokes (N-S) equations were solved to simulate the process of ducted fan during pulling up. The results demonstrate that the hysteresis properties of unsteady aerodynamic force of the ducted fan are obvious at transition period. The increase of pitch rate of the tilt ducted fan delayes the flow field separation, and increase lift and drag of ducted fan. The aerodynamic performance of the ducted fan is excellent in transition period at low speed. Higher speed and larger angles of attack worsen the aerodynamic performance of ducted fan, and the curve of the pitch moment is in a mess against the transition flight.
- tilt ducted fan aircraft /
- ducted fan /
- unsteady aerodynamic force /
- disk model /
- sliding mesh

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参考文献(18)

[1]	Stiltner B,Cotting M C,Ohanian O J.Derivation and analysis of the equations of motion for a ducted fan UAV[R].AIAA-2011-6611,2011.
[2]	许和勇,叶正寅.涵道螺旋桨与孤立螺旋桨气动特性的数值模拟对比[J].航空动力学报,2011,26(12):2820-2825. XU Heyong,YE Zhengyin.Numerical simulation and comparison of aerodynamic characteristics between ducted and isolated propellers[J].Journal of Aerospace Power,2011,26(12):2820-2825.(in Chinese)
[3]	Williams M H,Cho J,William N D.Unsteady aerodynamic analysis of ducted fans[J].Journal of Propulsion and Power,1991,7(5):800-804.
[4]	Hall E J,Delaney R A.3D Euler analysis of ducted propfan flowfields[R].AIAA 90-3034,1990.
[5]	Chang I C,Rajagopalan R G.CFD analysis for ducted fans with validation[R].AIAA-2003-4079,2003.
[6]	Abrego A I,Bulaga R W.Performance study of a ducted fan system[R].San Francisco:American Helicopter Society Aerodynamics,Acoustics,and Test and Evaluation Technical Specialists Meeting,2002.
[7]	Graf W,Fleming J,Wing N.Improving ducted fan UAV aerodynamics in forward flight[R].AIAA-2008-430,2008.
[8]	Miles R C,Shinji S,Daisuke K.Wind tunnel test results and performance prediction for a ducted fan with collective and cyclic pitch actuation for VTOL with efficient cruise[R].AIAA-2011-6379,2011.
[9]	李建波,高正,唐正飞,等.涵道风扇升力系统的升阻特性试验研究[J].南京航空航天大学学报,2004,36(2):164-168. LI Jianbo,GAO Zheng,TANG Zhengfei,et al.Experimental investigation on lift and drag of ducted fan system[J].Journal of Nanjing University of Aeronautics and Astronautics,2004,36(2):164-168.(in Chinese)
[10]	李建波,高正.涵道风扇空气动力学特性分析[J].南京航空航天大学学报,2005,37(6):680-684. LI Jianbo,GAO Zheng.Aerodynamical characteristics analysis of ducted fan[J].Journal of Nanjing University of Aeronautics and Astronautics,2005,37(6):680-684.(in Chinese)
[11]	孔卫红,陈仁良.旋翼/涵道/风扇升力系统的前飞气动特性[J].南京航空航天大学学报,2008,40(5):571-576. KONG Weihong,CHEN Renliang.Aerodynamic characteristics of rotor/duct/fan system in forward flight[J].Journal of Nanjing University of Aeronautics and Astronautics,2008,40(5):571-576.(in Chinese)
[12]	徐嘉,范宁军,赵澍.涵道飞行器涵道本体气动特性研究[J].弹箭与制导学报,2009,29(4):174-177. XU Jia,FAN Ningjun,ZHAO Shu.The study on aerodynamic characteristics of duct body of ducted fan aircraft[J].Journal of Projectiles,Rockets,Missiles and Guidance, 2009,29(4):174-177.(in Chinese)
[13]	蔡红明,昂海松,段文博.一种新型涵道飞行器的设计与气动特性研究[J].兵工学报,2012,33(7):857-863. CAI Hongming,ANG Haisong,DUAN Wenbo.Design of a new ducted fan aircraft and its derodynamic characteristic research[J].Acta Armamentarii,2012,33(7):857-863.(in Chinese)
[14]	李博,梁德旺,黄国平.基于等效盘模型的滑流对涡桨飞机气动性能的影响[J].航空学报,2008,29(4):845-852. LI Bo,LIANG Dewang,HUANG Guoping.Propeller slipstream effects on aerodynamic performance of turbo-prop airplane based on equivalent actuator disk model[J].Acta Aeronautica et Astronautica Sinica,2008,29(4):845-852.(in Chinese)
[15]	刘沛清.空气螺旋桨理论及其应用[M].北京:北京航空航天大学出版社,2006:59-66.
[16]	何辉,史爱明,叶正寅.螺旋桨飞机超低空流场数值模拟方法研究[J].工程力学,2009,26(2):222-226. HE Hui,SHI Aiming,YE Zhengyin.Research on numerical simulation method of propeller-driven aircraft flow fields at low altitude[J].Engineering Mechanics,2009,26(2):222-226.(in Chinese)
[17]	Grunwald K J,Goodson K W.Aerodynamic loads on an isolated shrouded-propeller configuration for angles of attack from -10° to 110°[R].NASA Technical Note D-995,1962.
[18]	Hamdani H,Sun M.Aerodynamic forces and flow structures of an airfoil in some unsteady motions at small Reynolds number[J].Acta Mechanica,2000,145(1/2/3/4):173-187.