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各向异性复合材料平板气膜冷却特性实验和数值研究

侯亚东 单勇 李江宁 张靖周 谭晓茗

侯亚东, 单勇, 李江宁, 张靖周, 谭晓茗. 各向异性复合材料平板气膜冷却特性实验和数值研究[J]. 航空动力学报, 2017, 32(10): 2384-2393. doi: 10.13224/j.cnki.jasp.2017.10.011
引用本文: 侯亚东, 单勇, 李江宁, 张靖周, 谭晓茗. 各向异性复合材料平板气膜冷却特性实验和数值研究[J]. 航空动力学报, 2017, 32(10): 2384-2393. doi: 10.13224/j.cnki.jasp.2017.10.011
Experimental and numerical studies on the film cooling characteristics of anisotropic composite plates[J]. Journal of Aerospace Power, 2017, 32(10): 2384-2393. doi: 10.13224/j.cnki.jasp.2017.10.011
Citation: Experimental and numerical studies on the film cooling characteristics of anisotropic composite plates[J]. Journal of Aerospace Power, 2017, 32(10): 2384-2393. doi: 10.13224/j.cnki.jasp.2017.10.011

各向异性复合材料平板气膜冷却特性实验和数值研究

doi: 10.13224/j.cnki.jasp.2017.10.011
基金项目: 国家自然科学基金(51306088)

Experimental and numerical studies on the film cooling characteristics of anisotropic composite plates

  • 摘要: 针对不同编织方式形成的复合材料平板气膜冷却开展了实验研究,利用红外热像仪测量了热侧壁面的温度场分布,分析了平板导热系数、吹风比、主流温度等参数对综合冷却效率的影响。在实验验证的基础上,进一步对单向增韧特点的复合材料进行数值模拟,分析了X、Y、Z三个方向导热系数对单孔气膜冷却壁面温度场分布和综合冷却效率的影响。结果表明:随着吹风比的升高,气膜综合冷却效率升高;随着主流温度的升高,气膜冷却效率降低;25D编织复合材料冷却效率最高,3D编织复合材料冷却效率最低。各向异性复合材料内部的温度梯度、传热量都与材料的导热系数特征有关,X方向和Z方向的导热系数增大,沿程综合冷却效率升高;而Y方向导热系数的增大对气膜冷却效率几乎没有影响。

     

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出版历程
  • 收稿日期:  2016-03-21
  • 刊出日期:  2017-10-28

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