驻点热流测量试验技术研究

秦峰; 何川; 曾磊; 孔荣宗; 刘济春

doi:10.3969/j.issn.0258-2724.2013.06.016

驻点热流测量试验技术研究

doi: 10.3969/j.issn.0258-2724.2013.06.016

秦峰^1,2,
何川¹,
曾磊²,
孔荣宗²,
刘济春²

详细信息

作者简介:
秦峰（1978-），女，副研究员，研究方向为空气动力学、气体热力学试验技术，电话：13548430502，E-mail：afeng0504@sina.com

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出版历程
- 收稿日期: 2012-04-05
- 刊出日期: 2013-12-25

Experimental Research of Heat-Transfer Measurements on Stagnation Points

摘要

摘要: 为了提高超声速脉冲风洞中球头驻点热流测量精度，对1 mm小型化同轴热电偶研制及薄膜热流传感器的耐冲刷性能进行研究.应用热传导反问题的计算分析方法，建立了分别针对薄膜热流传感器和同轴热电偶的数据处理方法.在2 m激波风洞上利用研制的5种不同类型及尺寸的传感器进行了球头驻点热流测量试验，将试验结果与F-R公式计算结果进行比较，并分析了传感器外形尺寸、热壁、传感器敏感元件、同轴热电偶膜厚等对试验结果的影响.结果表明：研制的小型化同轴热电偶响应时间满足测试要求；薄铂膜热流传感器重复性误差在8%以内.
- 驻点 /
- 热流 /
- 同轴热电偶 /
- 导热反问题
Abstract: In order to improve the measurement precision of stagnation point heat transfer in shock tunnel tests, a research on developing a coaxial thermal-couple of 1 mm diameter and improving the endurance of thin-film heat-transfer sensors was carried out. Data processing methods of the two sensors were established based on the theoretical model for the inverse problem of heat conduction. Five heat transfer sensors of different types and dimensions were tested in a shock tunnel of 2 m diameter. The test results were compared to those calculated by F-R formula, and the influences of factors such as sensor shape, hot wall, sensing elements, and film thickness on the test results were analyzed. The results show that the response time of the coaxial thermal couple satisfies the test requirement, and the repeatability error of the thin film heat transfer sensor was is less than 8%.
- stagnation point /
- heat transfer /
- coaxial thermal couple /
- inverse problem of heat conduction

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参考文献(38)

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文章访问数: 954
HTML全文浏览量: 57
PDF下载量: 308
被引次数: 0

驻点热流测量试验技术研究

doi: 10.3969/j.issn.0258-2724.2013.06.016

作者简介: 秦峰（1978-），女，副研究员，研究方向为空气动力学、气体热力学试验技术，电话：13548430502，E-mail：afeng0504@sina.com

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出版历程

Experimental Research of Heat-Transfer Measurements on Stagnation Points

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出版历程

目录

作者简介:
秦峰（1978-），女，副研究员，研究方向为空气动力学、气体热力学试验技术，电话：13548430502，E-mail：afeng0504@sina.com