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高超声速飞行器激波干扰区缝隙流动传热特性研究

李宗阳 窦怡彬 任智毅 陆云超 陈俊铭

李宗阳, 窦怡彬, 任智毅, 陆云超, 陈俊铭. 高超声速飞行器激波干扰区缝隙流动传热特性研究[J]. 气体物理, 2024, 9(2): 1-8. doi: 10.19527/j.cnki.2096-1642.1100
引用本文: 李宗阳, 窦怡彬, 任智毅, 陆云超, 陈俊铭. 高超声速飞行器激波干扰区缝隙流动传热特性研究[J]. 气体物理, 2024, 9(2): 1-8. doi: 10.19527/j.cnki.2096-1642.1100
LI Zongyang, DOU Yibin, REN Zhiyi, LU Yunchao, CHEN Junming. Heat Transfer Characteristics of Gap Flows in Shock-Wave Interference Region of Hypersonic Vehicles[J]. PHYSICS OF GASES, 2024, 9(2): 1-8. doi: 10.19527/j.cnki.2096-1642.1100
Citation: LI Zongyang, DOU Yibin, REN Zhiyi, LU Yunchao, CHEN Junming. Heat Transfer Characteristics of Gap Flows in Shock-Wave Interference Region of Hypersonic Vehicles[J]. PHYSICS OF GASES, 2024, 9(2): 1-8. doi: 10.19527/j.cnki.2096-1642.1100

高超声速飞行器激波干扰区缝隙流动传热特性研究

doi: 10.19527/j.cnki.2096-1642.1100
详细信息
    作者简介:

    李宗阳(1991—)男, 硕士, 工程师, 主要研究飞行器气动热及热防护设计。E-mail: 1192009609@qq.com

  • 中图分类号: V211

Heat Transfer Characteristics of Gap Flows in Shock-Wave Interference Region of Hypersonic Vehicles

  • 摘要: 针对高超声速飞行器激波干扰区附近缝隙流动传热问题, 建立激波发生器和缝隙的二维模型, 利用CFD仿真分析技术, 分别研究了激波作用于缝隙前、缝隙中和缝隙后情况下缝隙内部流动传热特性。结果表明, 相比较无激波的状态, 激波作用于缝隙前和缝隙中时, 会明显改变缝隙内部流体的旋涡结构, 使得缝隙内部流动强度和热量急剧增加; 当激波作用于缝隙后部时, 缝隙内部流体的旋涡结构没有明显改变, 且靠近缝隙口的远端壁面热流有局部降低, 有利于热防护结构的维型。研究结果表明, 结构热防护设计时应避免激波作用在缝隙前部和中部的位置。

     

  • 图  1  实验模型示意图

    Figure  1.  Sketch of experimental model

    图  2  不同网格密度的缝隙网格

    Figure  2.  Gap grids with different mesh densities

    图  3  缝隙内旋涡分布

    Figure  3.  Distribution of vortex structures in gaps

    图  4  缝隙热流数值模拟与实验对比

    Figure  4.  Comparison of gap heat flux between numerical simulation and experiment

    图  5  激波发生器与缝隙的二维模型

    Figure  5.  Two-dimensional model of shock wave generator and gap

    图  6  不同激波位置缝隙内部的旋涡结构

    Figure  6.  Vortex structures inside the gap at different shock wave positions

    图  7  缝隙内Y向速度云图分布

    Figure  7.  Distribution of Y-direction velocity inside the gap

    图  8  缝隙内部温度云图分布

    Figure  8.  Distribution of temperature inside the gap

    图  9  不同激波位置下缝隙远端壁面热流曲线

    Figure  9.  Heat flux curves on the far-end wall of the gap at different shock wave positions

    图  10  不同激波位置下缝隙底部壁面热流曲线

    Figure  10.  Heat flux curves in the bottom of the gap at different shock wave positions

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出版历程
  • 收稿日期:  2023-12-19
  • 修回日期:  2023-12-26

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