| 基于混合传热模态的瞬态热流测试方法研究 |
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| 引用本文： | 王辉,吴东,朱新新,朱涛,杨凯,程光辉.基于混合传热模态的瞬态热流测试方法研究[J].实验流体力学,2021,35(4):92-97. |
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| 作者姓名： | 王辉 吴东 朱新新 朱涛 杨凯 程光辉 |
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| 作者单位： | 中国空气动力研究与发展中心 超高速空气动力研究所，四川 绵阳 621000 |
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| 基金项目： | 国家自然科学基金（11872068） |
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| 摘 要： | 瞬态热流是电弧加热器试验高温流场需要校测的重要参数。针对高热流、强冲刷试验测试环境，根据能量守恒原则，给出了一种基于热容吸热和一维半无限体传热的混合传热模态的瞬态热流测试方法，分析了有效测试时间范围。在此基础上，设计了一种新型结构的瞬态热流传感器。结合标定试验，对研制的瞬态热流传感器进行动态响应特性检测和准度校准，并应用于电弧加热器试验环境中。结果表明:该瞬态热流传感器具有良好的动态响应性能和抗冲刷能力，可以满足电弧加热器试验环境高热流测试需求。
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| 关 键 词： | 混合传热模态 瞬态热流 测试方法 动态响应 |
| 收稿时间： | 2021-03-26 |
The study on transient heat flux measurement based on hybrid heat transfer modes |
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| Affiliation: | Hypervelocity Aerodynamics Institute, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China |
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| Abstract: | The transient heat flux is an important parameter simulated in the high temperature flowfield of the arc heater test. With respect to the harsh aerodynamic heating environment with high-level heat flux and intensive erosion, a modified transient heat flux measurement method is firstly proposed based on the hybrid heat transfer modes of heat capacity and one-dimensional semi-infinite heat transfer. Then, a novel structure of the transient heat flux sensor is designed and fabricated for the hybrid method. The sensor calibration is evaluated on the calibration system, and it is found that it has a good linear sensitivity and the proposed measurement method is favorable to its rapid-response. Finally, the on-site measurement results show that this type of heat flux sensor has a good robust and dynamical response, which can be applied under the high-level heat flux environment of the arc heater test. |
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