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论文:2014,Vol:32,Issue(2):188-194 |
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引用本文： |
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白俊强, 辛亮, 刘南, 华俊, 董建鸿, 雷武涛, 张晓亮. 分布式零质量射流控制增升装置分离的数值模拟[J]. 西北工业大学 |
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Bai Junqiang, Xin Liang, Liu Nan, Hua Jun, Dong Jianhong, Lei Wutao, Zhang Xiaoliang. Numerical Simulation of Separation Control for High Lift System Using Distributed Zero-Net Mass Flux Jet[J]. Northwestern polytechnical university |
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| 分布式零质量射流控制增升装置分离的数值模拟 |
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| 白俊强1, 辛亮1, 刘南1, 华俊1,2, 董建鸿3, 雷武涛3, 张晓亮1 |
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1. 西北工业大学 航空学院, 陕西 西安 710072;
2. 中国航空研究院, 北京 10000;
3. 中国航空工业集团 第一飞机设计研究院, 陕西 阎良 710089 |
| 摘要: |
| 为改善大型民用运输机的起降性能,以典型的三段翼型为研究对象,研究分布式射流主动控制技术对提高增升装置效率的可行性。给出了零质量射流和分布式零质量射流的作用原理,获得了分布式零质量射流的孔口分布、射流频率、射流动量对增升装置气动性能影响的规律。研究表明:零质量射流不论是吹气或者吸气,都可以增加边界层的能量,延迟分离,使得流动控制整个周期产生的气动效果都要优于未加控制的情形,但其无法完全消除襟翼上表面的分离,分布式零质量射流能达到更好的结果。数值模拟结果表明:零质量射流控制能使升力系数增加7.1%,分布式零质量射流控制能使升力系数增加20.3%,可见分布式零质量射流比零质量射流有更好的控制结果。分布式零质量射流不仅仅是各个孔口射流的简单叠加,而且还受到各个孔口串联作用的有利影响。总结四孔分布式零质量射流的设计准则为:当射流频率为1,射流动量为0.002时,能最大限度地消除襟翼上表面的分离,对升力系数的改善最为明显。 |
| 关键词:
增升装置
主动流动控制
零质量射流
分布式零质量射流
流动机理
设计准则
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| Numerical Simulation of Separation Control for High Lift System Using Distributed Zero-Net Mass Flux Jet |
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| Bai Junqiang1, Xin Liang1, Liu Nan1, Hua Jun1,2, Dong Jianhong3, Lei Wutao3, Zhang Xiaoliang1 |
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1. College of Aeronautics, Northwestern Polytechnical University, Xi'an, 710072, China;
2. Chinese Aeronautics Establishment, Beijing 100191, China;
3. AVIC The First Aircraft Institute, Yanliang 710000, China |
| Abstract: |
| In order to improve takeoff and landing performance of large transport airplane, a typical three element airfoil is selected;we study the feasibility of distributed zero-net mass flux jet for improving the aerodynamic per-formance of the high lift systems. Flow mechanism of zero-net mass flux jet and distributed zero-net mass flux jet and the impact of their parameters are analyzed, including slot distribution, momentum coefficient and excitation frequency. Research results indicate that, no matter blowing or suction, zero-net mass flux jet can improve boundary layer energy and delay flow separation;it is better than one without flow control, but it cannot eliminate flow separation, while distributed zero-net mass flux jet can. Simulation results indicate that, when zero-net mass flux jet is working,the lift coefficient can increase by 7.1%, while distributed zero-net mass flux jet results in an increase by 20.3%;therefore distributed zero-net mass flux jet has better performance on flow control. Distributed zero-net mass flux jet is not only simple linear integration of every actuator, but also is beneficially influenced by every actuator. Four port distributed zero-net mass flux jet with momentum coefficient of 0.002, excitation frequency of 1 is best;it can eliminate flow separation on flap and improve lift coefficient significantly. |
| Key words:
aircraft landing
airfoils
boundary conditions
boundary layer
calculations
computer simulation
design
drag coefficient
experiments
flow control
jets
flow fields
flow separation
lift
lift drag ratio
mass transfer
mesh generation
momentum
Navier Stokes equations
pressure distribution
takeoff
transport aircraft
turbulence models
velocity
high lift system
active flow control
zero-net mass flux jet
distributed zero-net mass flux jet
flow mechanism
design principle
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| 收稿日期: 2013-04-11
修回日期:
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| DOI: |
| 通讯作者:
Email： |
| 作者简介: 白俊强(1971-),西北工业大学教授、博士生导师,主要从事飞行器设计的研究。
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| 相关功能 |
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| 作者相关文章 |
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| 白俊强 在本刊中的所有文章 |
| 辛亮 在本刊中的所有文章 |
| 刘南 在本刊中的所有文章 |
| 华俊 在本刊中的所有文章 |
| 董建鸿 在本刊中的所有文章 |
| 雷武涛 在本刊中的所有文章 |
| 张晓亮 在本刊中的所有文章 |
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参考文献: |
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[1] Van Dam C P. The Aerodynamic Design of M ulti -Element High -Lift Systems for Transport Airplanes[J]. P rogress in Aerospace Science, 2002, 38: 101-144
[2] Smith B L, Glezer A. Vectoring and Small-Scale Motions Effected in Free Shear Flows Using Synthetic Jet Actuators[R] ∥ AIAA-1997-0213
[3] Donovan F, Linda D K, Cary W. Active Flow Control Applied to an Airfoil[R] ∥AIAA-1998-0210
[4] Shmilovich A, Yadlin Y. Active Flow Control for Practical High-Lift Systems[J]. Journal of Aircraft, 2009, 46(4): 1354-1364 |
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相关文献: |
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1．白俊强, 刘南, 邱亚松, 陈迎春, 李亚林, 周涛.大型民用运输机短舱涡流片增升效率以及参数影响研究[J]. 西北工业大学, 2013,31(4): 522-529 |
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