双射流环量控制翼型的控制力矩特性研究

何玉娟; 雷玉昌; 张登成; 张艳华; 周章文

doi:10.13700/j.bh.1001-5965.2021.0080

双射流环量控制翼型的控制力矩特性研究

doi: 10.13700/j.bh.1001-5965.2021.0080

1.
空军工程大学航空工程学院, 西安 710038
2.
中国人民解放军95034部队, 百色 533601

详细信息

通讯作者:
张登成, E-mail: dengcheng-zhang@163.com

中图分类号: V221⁺.3
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- 文章访问数: 316
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- 被引次数: 0
出版历程
- 收稿日期: 2021-02-19
- 录用日期: 2021-03-29
- 网络出版日期: 2021-12-20

Control moment characteristics of double-jet circulation control airfoil

1.
Aeronautics Engineering College, Air Force Engineering University, Xi'an 710038, China
2.
Unit 95034 of the Chinese People's Liberation Army, Baise 533601, China

More Information

Corresponding author: ZHANG Dengcheng, E-mail: dengcheng-zhang@163.com

摘要

摘要:
为了探究环量控制技术在飞行控制性能方面的优势，在定常流场中对定常射流环量控制翼型的控制力矩作用机理展开了研究，采用数值仿真的方法，对比分析了单射流、双射流产生的虚拟舵面与传统舵面作用下的气动力系数的变化规律，并基于无舵面飞行器CCSCAOON对其气动力矩的控制特性进行了验证。验证结果表明：单射流作用下的虚拟舵面能够提供用于飞行器所需的滚转和俯仰力矩，且作用机理相似，控制性能优于传统舵面；无论是单射流还是双射流，在大迎角下虚拟舵面的气动控制特性较差，限制了环量控制的使用迎角；双射流较单射流而言，升阻比特性和控制力矩特性较好；双射流下的虚拟舵面通过调节下射流口动量系数，能够有效降低偏航力矩与滚转、俯仰力矩之间的耦合效应。
- 定常射流 /
- 环量控制 /
- 无舵面飞行器 /
- 数值仿真 /
- 气动特性
Abstract:
In order to study the possibility of flight control by circulation control technology, the control moment characteristics of steady jet circulation control airfoil in steady flow field are studied. The aerodynamic coefficient variation rules of virtual rudder and traditional rudder produced by single jet and double jet are compared and analyzed by numerical simulation, and the aerodynamic moment control characteristics are verified based on the rudderless aircraft Circulation Control SCAOON (CCSCAOON). The verification results show that the virtual rudder under single jet can provide the rolling and pitching torque needed by aircraft, the action mechanism is similar, and the control performance is better than that of the traditional rudder. Whether under single jet or double jet, the aerodynamic characteristics of circulation control airfoils at high angle of attack are poor, which limits the use of circulation control angle of attack. The lift-drag ratio and control torque characteristics of double jet are better than those of single jet. By adjusting the momentum coefficient of the lower jet port, the virtual rudder under double jet can effectively reduce the coupling effect of yaw moment, rolling moment and pitching moment.
- steady jet /
- circulation control /
- rudderless aircraft /
- numerical simulation /
- aerodynamic characteristics

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图 1 CCSCAOON基本构型

Figure 1. Basic configuration of CCSCAOON

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图 2 CCSCAOON射流区域

Figure 2. CCSCAOON jet area

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图 3 CCSCAOON计算网格

Figure 3. CCSCAOON computing grids

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图 4 实验与仿真结果对比

Figure 4. Comparison of experimental and simulation results

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图 5 气动力、力矩的作用方向示意图

Figure 5. Schematic diagram of direction of aerodynamic force and torque

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图 6 单射流虚拟舵面与机械舵面气动特性曲线

Figure 6. Curve of aerodynamic characteristics of single-jet virtual rudder and mechanical rudder

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图 7 CCSCAOON的表面压力分布和流线图

Figure 7. Surface pressure distribution and streamlines of CCSCAOON

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图 8 不同工况下的气动力矩变化趋势

Figure 8. Variation trend of aerodynamic moment under different operating conditions

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图 9 LIO080和LIO082工况对应下的后缘流场和涡量图

Figure 9. Trailing-edge flow field and vorticity under LIO080 and LIO082 operating conditions

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表 1 不同工况下的射流动量系数

Table 1. Momentum coefficient of jet flow

工况	射流动量系数
LIO040	LIB/LOB: C_{u up}=0.04，C_{u lw}=0
LIO060	LIB/LOB: C_{u up}=0.06，C_{u lw}=0
LIO062	LIB/LOB: C_{u up}=0.06，C_{u lw}=0.02
LIO080	LIB/LOB: C_{u up}=0.08，C_{u lw}=0
LIO082	LIB/LOB: C_{u up}=0.08，C_{u lw}=0.02

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