磁浮飞行风洞动模型气动结构耦合仿真评估

高兴龙; 王超; 符澄; 孙运强; 寇杰

doi:10.11729/syltlx20220127

磁浮飞行风洞动模型气动结构耦合仿真评估

doi: 10.11729/syltlx20220127

高兴龙^{1, 2,},
王超^{1, 2},
符澄^{1, 2, ,},
孙运强^{1, 2},
寇杰^{1, 2}

1.
空气动力学国家重点实验室，绵阳　621000
2.
中国空气动力研究与发展中心设备设计与测试技术研究所，绵阳　621000

详细信息

作者简介:
高兴龙：（1987—），男，吉林蛟河人，博士，副研究员。研究方向：风洞气动设计，流固耦合与柔性多体系统动力学，大型航天器在轨飞行与再入预报技术。通信地址：四川省绵阳市涪城区二环路南段6号12号信箱1分箱（621000）。E-mail：gaoxinglong@cardc.cn

通讯作者:
E-mail：fucheng@cardc.cn

中图分类号: V211.74
计量
- 文章访问数: 198
- HTML全文浏览量: 70
- PDF下载量: 32
- 被引次数: 0
出版历程
- 收稿日期: 2022-11-09
- 修回日期: 2023-05-31
- 录用日期: 2023-06-01
- 刊出日期: 2023-06-25

Simulation evaluation of aero-structure interaction for moving model in maglev flight tunnel

GAO Xinglong^{1, 2
,},
WANG Chao^{1, 2},
FU Cheng^{1, 2
, ,},
SUN Yunqiang^{1, 2},
KOU Jie^{1, 2}

1.
State Key Laboratory of Aerodynamics, Mianyang　621000, China
2.
Facility Design and Instrumentation Institute, China Aerodynamics Research and Development Center, Mianyang　621000, China

摘要

摘要: 磁浮飞行风洞是一种“体动风静”的新概念空气动力试验设备。模型在长直线密闭管道中高速运动过程的气动特性复杂，会对周围流场产生强烈的扰动，涉及到波系传播和气动与结构之间的单向耦合问题。本文从气动结构耦合仿真的角度，对磁浮飞行风洞试验过程中模型高速运动所产生的非定常气动特性进行了分析和评估，基于一种新型时空守恒元和解元（CE/SE）方法耦合求解了管道内模型周围的三维可压缩流场变化，获得了模型高速运动过程的气动力参数变化、波系传播特性及管道内压力分布，并开展了多孔介质消波材料参数仿真设计分析，为磁浮飞行风洞消波措施设计等提供支撑。
- 磁浮飞行风洞 /
- 动模型试验 /
- CE/SE方法 /
- 气动结构仿真评估 /
- 耦合
Abstract: The maglev flight tunnel is a novel concept aerodynamics test facility, in which the high speed translation of the moving model in the long straight closed tunnel would induce extremely complicated aerodynamic characteristics. The motion of model’s fast acceleration, deceleration and constant speed moving have strong interference to the surrounding fluid field, causing wave propagation problems and the aero-structure single way coupling problems. The unsteady characteristics originated from the high speed moving of the model in the maglev flight tunnel are investigated and evaluated from the view of aero-structure coupling. Based on the new CE/SE method, the 3D surrounding compressible fluid of the moving model in tunnel is solved, and the aerodynamic parameters variations, wave propagation characteristics and the pressure distribution in the tunnel are obtained. Simulation design analysis of parameters for porous medium wave absorbing materials is conducted, which could provide a support for the key technical problems like wave absorbing construction design of the maglev flight tunnel.
- maglev flight tunnel /
- moving model test /
- CE/SE method /
- aero-structure simulation evaluation /
- coupling

HTML全文

图 1 磁浮飞行风洞磁浮平台及管道截面组合模型图

Figure 1. Combined model between maglev platform and tunnel section of maglev flight tunnel

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图 2 流固耦合平台

Figure 2. Fluid structure interaction platform

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图 3 基于CE/SE算法的流固耦合求解流程图^[20]

Figure 3. Solving flowchart of FSI by CE/SE algorithm^[20]

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图 4 有限元流体模型示意图

Figure 4. Layout of finite element flow model

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图 5 磁浮平台和试验模型结构域网格图

Figure 5. Structure mesh of maglev platform and test model

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图 6 管道横截面流体域网格图

Figure 6. Flow mesh of tunnel section

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图 7 工况1模型运行速度随时间变化曲线

Figure 7. Model moving velocity vs. time for condition 1

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图 8 工况2模型运行速度随时间变化曲线

Figure 8. Model moving velocity vs. time for condition 2

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图 9 工况1管道内各横截面压力变化曲线

Figure 9. Pressure vs. time curves of tunnel sections for condition 1

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图 10 工况2管道内各横截面的压力变化曲线

Figure 10. Pressure vs. time curves of tunnel sections for condition 2

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图 11 工况1模型运动过程气动阻力随时间变化曲线

Figure 11. Aerodynamic drag vs. time curve during model moving for condition 1

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图 12 工况2模型运动过程气动阻力随时间变化曲线

Figure 12. Aerodynamic drag vs. time curve during model moving for condition 2

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图 13 模型运动不同时刻速度云图

Figure 13. Velocity contours for model moving at different times

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图 14 模型运动不同时刻Schlieren数分布云图

Figure 14. Schlieren contours for model moving at different times

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图 15 管道末端截面选取单元位置示意图

Figure 15. Layout for choosing elements’ positions at end wall

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图 16 工况1管道末端截面选取单元的压力变化曲线

Figure 16. Pressure vs. time of choosing elements for condition 1

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图 17 多孔介质参数数值计算模型

Figure 17. Numerical calculation model of parameters for porous medium

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图 18 无多孔介质时压缩波的传播特性

Figure 18. Compression wave propagation characteristics without porous medium

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图 19 多孔介质黏性系数为5.6 × 10⁸m⁻²时压缩波的传播特性

Figure 19. Compression wave propagation characteristics at viscous factor 5.6 × 10⁸m⁻²

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图 20 黏性系数1 × 10⁷m⁻²时压缩波传播特性

Figure 20. Compression wave propagation characteristics at viscous factor 1 × 10⁷m⁻²

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图 21 无多孔介质、有高/低黏性多孔介质时监测点的时域压力变化曲线

Figure 21. Time-domain pressure change curve of monitoring point without porous medium and with high/low viscosity porous medium

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图 22 多孔介质黏性系数为2 × 10⁷m⁻²时的监测点压力变化曲线

Figure 22. Variation curve of monitoring point’s pressure at viscous factor 2 × 10⁷m⁻²

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表 1 仿真工况参数

Table 1. List of simulation conditions

工况	速度/(m·s⁻¹)	动压/Pa	密度/(kg·m⁻³)
1	170	101325	1.25
2	340	101325	1.25

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表 2 FSI与CFD仿真结果^[21]对比

Table 2. Comparison results of FSI and CFD^[21] simulation

时间/s	仿真方法	压力/Pa	差异	阻力/N	差异
4	FSI	102445	1.58%	12870	4.8%
4	CFD	100826	1.58%	12252	4.8%
5	FSI	107754	1.92%	13100	2.02%
5	CFD	105682	1.92%	12835	2.02%
6	FSI	97680	5.26%	13250	1.49%
6	CFD	92543	5.26%	13052	1.49%
8	FSI	106652	2.09%	13410	0.95%
8	CFD	104421	2.09%	13283	0.95%
10	FSI	101345	0.68%	12710	1.27%
10	CFD	100652	0.68%	12548	1.27%

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