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对转涵道风扇桨叶高效设计方法

郭佳豪 周洲 李旭

郭佳豪,周洲,李旭.对转涵道风扇桨叶高效设计方法[J].航空动力学报,2022,37(9):1835‑1845. doi: 10.13224/j.cnki.jasp.20210347
引用本文: 郭佳豪,周洲,李旭.对转涵道风扇桨叶高效设计方法[J].航空动力学报,2022,37(9):1835‑1845. doi: 10.13224/j.cnki.jasp.20210347
GUO Jiahao,ZHOU Zhou,LI Xu.Efficient design method for blades of counter⁃rotating ducted fan[J].Journal of Aerospace Power,2022,37(9):1835‑1845. doi: 10.13224/j.cnki.jasp.20210347
Citation: GUO Jiahao,ZHOU Zhou,LI Xu.Efficient design method for blades of counter⁃rotating ducted fan[J].Journal of Aerospace Power,2022,37(9):1835‑1845. doi: 10.13224/j.cnki.jasp.20210347

对转涵道风扇桨叶高效设计方法

doi: 10.13224/j.cnki.jasp.20210347
基金项目: 

民机专项 MJ⁃2015⁃F⁃009

陕西省自然科学基金 2019JM⁃044

陕西省重点研发项目 2021ZDLGY09⁃08

详细信息
    作者简介:

    郭佳豪(1993-),男,博士生,主要从事耦合动力的飞行器气动布局设计研究。

    通讯作者:

    周洲(1966-),女,教授、博士生导师,博士,主要从事无人机设计研究。E⁃mail:zhouzhou@nwpu.edu.cn

  • 中图分类号: V211.3

Efficient design method for blades of counter⁃rotating ducted fan

  • 摘要:

    基于叶素动量理论的对转涵道风扇桨叶设计方法虽然设计速度快,但设计精度不高。为提高设计方法的设计精度,同时保留设计的快速性,通过CFD计算对基于叶素动量理论的桨叶快速设计方法进行修正,提出一种耦合CFD修正的对转涵道风扇桨叶高效设计方法。通过CFD计算与修正设计的不断迭代,可使设计结果收敛至CFD计算结果,得到满足设计要求的桨叶。结果表明:MRF方法对对转涵风扇性能的求解精度不足,需采用非定常CFD方法。而通过CFD计算结果修正桨叶的拉力占比、入流角及叶素气动力后,对转涵道风扇总拉力设计精度提高10.4%,扭矩设计精度提高18.2%。文中提出的高效设计方法只需进行少量的CFD计算修正便能较好地满足设计要求,进行加速处理后,设计效率进一步提高25%。

     

  • 图 1  前转子叶素分析图

    Figure 1.  Blade element analysis of the front rotor

    图 2  测试涵道风扇的涵道截面示意图

    Figure 2.  Schematic diagram of the duct section for the testing ducted fan

    图 3  测试涵道风扇的几何

    Figure 3.  Geometry of the testing duct fan

    图 4  涵道风扇试验照片及连接方式

    Figure 4.  Experimental picture and connection mode of the ducted fan

    图 6  对转涵道风扇的涵道外形截面示意图

    Figure 6.  Schematic diagram of the duct section for the counter⁃rotating duct fan

    图 7  对转涵道风扇桨叶翼型

    Figure 7.  Airfoils of the blades of the counter⁃rotating ducted fan

    图 8  对转涵道风扇初始设计结果

    Figure 8.  Initial design results of the counter⁃rotating duct fan

    图 9  不同的前后转子相对位置

    Figure 9.  Different relative positions of front and rear rotors

    图 10  耦合CFD修正的桨叶高效设计流程

    Figure 10.  Efficient design process of the blades coupled with CFD modification

    图 11  对转涵道风扇桨叶弦长与扭转角设计结果

    Figure 11.  Results of the chord length and torsion angle of the blade of the counter⁃rotating ducted fan

    图 12  对转涵道风扇最终几何

    Figure 12.  Final geometry of the counter⁃rotating ducted fan

    表  1  对转涵道风扇性能对比

    Table  1.   Performance comparison of the counter⁃rotating ducted fan

    参数设计MRF 0MRF 1CFD U
    Tr1/N218.787167.519173.396163.939
    Qr1/(Nm)27.23521.93923.07922.068
    Tr2/N231.069215.509203.706211.173
    Qr2/(Nm)27.23525.69925.01926.015
    T/N900.000773.303804.781805.995
    下载: 导出CSV

    表  2  对转涵道风扇修正设计性能对比

    Table  2.   Performance comparison of the counter⁃rotating ducted fan after modification design

    参数修正1修正2修正3修正4
    设计CFD U设计CFD U设计CFD U设计CFD U
    Tr1/N197.736186.298199.886196.373199.003197.482199.880200.188
    Qr1/(Nm)28.39525.35928.32627.51828.01727.73628.20628.208
    Tr2/N221.192207.125223.720220.743222.614221.474223.677222.103
    Qr2/(Nm)28.39525.29528.32627.67228.01727.81628.20628.021
    T/N900.000836.225900.000891.686900.000891.432900.000899.119
    下载: 导出CSV

    表  3  对转涵道风扇设计修正参数

    Table  3.   Design modification parameters of the counter⁃rotating ducted fan

    参数修正1修正2修正3修正4
    a10.4650.4700.4680.470
    Vxz11.1041.0961.0881.092
    αr1/(°)-1.0110.3870.7010.786
    Vxz21.0521.0441.0371.041
    αr2/(°)-0.4930.7460.9921.053
    Cl20.5890.5880.5910.593
    下载: 导出CSV

    表  4  对转涵道风扇加速设计下修正参数变化

    Table  4.   Variation of modification parameters of the counter⁃rotating ducted fan under accelerated design

    参数修正1修正2修正3
    a10.4650.4660.468
    Vxz11.1041.0871.090
    αr1/(°)-0.5380.6320.759
    Vxz21.0521.0341.038
    αr2/(°)0.0641.1711.237
    Cl20.5890.6050.609
    下载: 导出CSV

    表  5  对转涵道风扇加速设计下性能对比

    Table  5.   Performance comparison of the counter⁃rotating ducted fan under accelerated design

    参数修正1修正2修正3
    设计CFD U设计CFD U设计CFD U
    Tr1/N197.736188.521197.653194.572199.468200.136
    Qr1/(Nm)28.39526.05727.85127.33628.00628.175
    Tr2/N221.192216.579221.854223.586222.199221.670
    Qr2/(Nm)28.39526.78627.85128.03228.00627.975
    T/N900.000868.816900.000894.145900.000901.625
    下载: 导出CSV
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  • 收稿日期:  2021-07-05

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