高温热管与高导热石墨烧蚀传热性能
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中国航天空气动力技术研究院

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欧东斌,1979 年出生,高级工程师。主要研究气动热和热防护设计及试验。E-mail:oudongbin@ sina. com

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Ablation and Heat Transfer Properties of High Temperature Heat-Pipe andHigh Thermal Conductivity Graphite
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    摘要:

    利用石英灯辐射加热器和电弧风洞耦合加热模拟高超声速飞行器驻点高温区的加热环境,对一
    种内部为高温热管和一种内部为高导热石墨的简单球柱形套装样件进行了加热试验。利用非接触红外测温装
    置对样件表面的温度进行了测量,通过与内部为C/ C 材料制成的对比样件的试验结果分析,发现高温热管和
    高导热石墨均能够有效地将样件驻点高温区热量传导到柱身低温区,其中高温热管样件驻点温度降低9. 5%,
    柱身温度升高14. 6%;高导热石墨驻点温度降低14. 4%,柱身温度升高11. 4%,显示两种材料均具有良好的热
    疏导效果。

    Abstract:

    With the quartz lamps and arc-heated wind tunnel, the high temperature supersonic flowfield was
    built. A principle thermal protection specimen with a high temperature heat-pipe and high thermal conductivity graphite
    was heated in this flowfield, the surface temperature distribution was measured by infrared temperature instruments.
    Compared with contrastive carbon/ carbon composite material specimen, the stagnation point temperature of
    high temperature heat-pipe was decreased 9. 5% as well as the cylinder surface temperature is increased 14. 6%, the
    stagnation point temperature of high thermal conductivity graphite is decreased 14. 4% as well as the cylinder surface
    temperature is increased 11. 4%,both of the two specimens can transfer the heat load effectively from the high heatflux
    field to the lower one.

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欧东斌 陈连忠 陈海群 俞继军 陈思员.高温热管与高导热石墨烧蚀传热性能[J].宇航材料工艺,2014,44(2):54-57.

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  • 在线发布日期: 2016-11-28
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