一种用于广泛温度范围分布式流量热量计的流体温度插值方法
Tao Zhang1, Yiming Lv1, Tiancheng Xie1
1College of Metrology Measurement and Instrument, China Jiliang University, Xueyuan Street, No. 258, 310018 Hangzhou, China.
The Review of scientific instruments
|October 11, 2024
概括
一种新方法精确计算了用于高超音速燃料开发的管道中的流体温度. 这种分布式流量热度计方法增强了热力学分析和燃料选择,用于高速飞行应用.
科学领域:
- 热力学是一种热力学.
- 流体动力学 流体动力学
- 航空航天工程是航空航天工程.
背景情况:
- 精确的碳化合物燃料的热力学表征对于开发先进的推进系统至关重要,特别是超音速飞行.
- 传统的流量热量计在高温操作条件下,在管道内精确监测流体温度方面面临挑战.
- 了解流体温度对于确定热力学参数,如反应和混合热量至关重要.
研究的目的:
- 提出和验证一种新的分布式方法,用于在高温条件下计算管道中的流体温度.
- 为了提高用于航空航天应用的碳化合物燃料的热力学测量的准确性.
- 为改善高超音速飞行燃料的选择和开发提供基础.
主要方法:
- 开发了一种分布式方法,通过在不同功率级别的实验来插入值函数.
- 利用微元素分析来计算狭窄管道内的液体温度,在广泛的温度范围内.
- 使用数值模拟建立并验证了流量热量计的模拟模型.
主要成果:
- 拟议的方法通过流量热量计的数值模拟来验证.
- 使用n-decane在295.50609.38 K温度范围内进行的实验验证显示相对误差为-0.61%至1.24%.
- 该方法证明了在分布式流量热量计内有效估计流体温度.
结论:
- 开发的分布式方法提供了一种有效的方法来估计流量热量计中的流体温度.
- 这种技术提高了衡量碳化合物燃料关键热力学参数的能力.
- 这些发现支持推进高超音速飞行应用的燃料选择和设计.
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