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基于红外测温技术的气膜孔高温冷却实验

杨智方 郭春海 刘通 马立程 张文武

杨智方, 郭春海, 刘通, 等. 基于红外测温技术的气膜孔高温冷却实验[J]. 航空动力学报, 2024, 39(8):20220496 doi: 10.13224/j.cnki.jasp.20220496
引用本文: 杨智方, 郭春海, 刘通, 等. 基于红外测温技术的气膜孔高温冷却实验[J]. 航空动力学报, 2024, 39(8):20220496 doi: 10.13224/j.cnki.jasp.20220496
YANG Zhifang, GUO Chunhai, LIU Tong, et al. High temperature cooling experiment of gas film hole based on infrared temperature measurement technology[J]. Journal of Aerospace Power, 2024, 39(8):20220496 doi: 10.13224/j.cnki.jasp.20220496
Citation: YANG Zhifang, GUO Chunhai, LIU Tong, et al. High temperature cooling experiment of gas film hole based on infrared temperature measurement technology[J]. Journal of Aerospace Power, 2024, 39(8):20220496 doi: 10.13224/j.cnki.jasp.20220496

基于红外测温技术的气膜孔高温冷却实验

doi: 10.13224/j.cnki.jasp.20220496
详细信息
    作者简介:

    杨智方(1999-),男,硕士生,主要从事气膜冷却方面的研究。E-mail:yangzhifang@nimte.ac.cn

    通讯作者:

    郭春海(1980-),男,高级工程师、硕士生导师,博士,主要从事多能场数值仿真与实验方面的研究。E-mail:guochunhai@nimte.ac.cn

  • 中图分类号: V231.1

High temperature cooling experiment of gas film hole based on infrared temperature measurement technology

  • 摘要:

    设计了一种低成本、高精度的气膜冷效实验验证平台,针对平板样件不同结构的气膜孔进行高速高温火焰冲击实验,利用红外测温技术对实验平板的温度场进行数据采集与综合分析。实验结果表明:两种孔形x向的温度梯度都明显小于y向,但是猫耳孔在y向有更好的冷却效果;同时猫耳孔的x向综合冷却效率也优于圆柱孔,并且冷却气流更倾向于形成稳定的气膜覆盖;此外,猫耳孔在单位面积中的总体冷却效果要优于圆柱孔,但在冷气出口附近可能产生较大的热应力;同时得到,猫耳孔气膜冷却降温面积较圆柱孔而言也有较大提升。

     

  • 图 1  气膜冷效实验验证平台系统结构图

    Figure 1.  System structure diagram of film cooling effect experiment verification platform

    图 2  火焰喷枪实物工作图

    Figure 2.  Physical working drawing of flame spray gun

    图 3  实验平板示意图

    Figure 3.  Schematic diagram of experimental plate

    图 4  猫耳形气膜孔具体结构图

    Figure 4.  Specific structure diagram of cat ear shaped gas film hole

    图 5  实验测试方法流程图

    Figure 5.  Experimental test method

    图 6  TBC材料喷涂表面的平板实物图

    Figure 6.  Physical drawing of TBC material spraying flat surface

    图 7  实验组高温火焰冲击气膜冷却平板实物图

    Figure 7.  Physical drawing of high temperature flame impact on film cooling plate of experimental group

    图 8  红外温度计和热成像仪调试温度-时间曲线

    Figure 8.  Commissioning temperature time curve of infrared thermometer and thermal imager

    图 9  两种孔的拟合温升曲线

    Figure 9.  Fitting temperature rise curve of two kinds of holes

    图 10  两种气膜孔平板热成像图

    Figure 10.  Two kinds of gas film hole plate thermography

    图 11  两组平板的温度分布曲线

    Figure 11.  Temperature distribution curve of two groups of plates

    图 12  沿x方向两种气膜孔的综合冷却效率

    Figure 12.  Comprehensive cooling efficiency of two kinds of holes along the x direction

    图 13  两组平板热成像单位面积提取示意图

    Figure 13.  Schematic diagram of average area of two groups of plate thermal imaging

    图 14  圆柱孔温度分布曲面图和等温线图

    Figure 14.  Surface diagram and isotherm diagram of temperature distribution of cylindrical hole

    图 15  猫耳孔温度分布曲面图和等温线图

    Figure 15.  Surface diagram and isotherm diagram temperature distribution of cat-ear hole

    图 16  两种气膜孔温升面积比较

    Figure 16.  Comparison of temperature rise area between two kinds of film holes

    表  1  两种孔形平板在xy方向上的最高温度和最低温度

    Table  1.   Maximum temperature and minimum temperature in x and y directions for two kinds of hole shaped flat plates

    参数 气膜孔形
    圆柱孔 猫耳孔
    最低温度/K 1105.4 1074.3
    x方向最高温度/K 1144.9 1106.4
    y方向最高温度/K 1124.9 1193.5
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-07-11
  • 网络出版日期:  2023-11-29

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