基于有效带积分方法的火球热剂量动态模型研究
Pan Pei1, Hongmian Du1, Xiaojian Hao1
1State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, Shanxi, China.
ACS omega
|August 21, 2023
概括
这项研究开发了爆炸性火球热辐射剂量的精确模型,提高了红外热成像仪的精度. 新模型提供了对弹药热损伤性能的更现实的评估.
科学领域:
- 爆炸物科学与工程 爆炸物科学与工程
- 红外热像图 (Infrared Thermography) 是一种红外热像图.
- 辐射热传递是辐射的热传递.
背景情况:
- 爆炸性火球释放出大量的辐射能量.
- 斯蒂芬-博尔茨曼公式通过计算全频能量来高估红外成像仪的热辐射.
- 现有的静态模型对于动态火球评估缺乏准确性.
研究的目的:
- 为了建立一个精确的动态模型爆炸性火球热辐射剂量.
- 为了使热辐射计算与红外热成像仪的有效波长频段保持一致.
- 改进弹药热损伤性能的评估.
主要方法:
- 从红外热图像中获得动态火球参数 (温度,直径,高度).
- 使用现场温度校准目标确定大气传导率.
- 红外热成像仪 (2-5微米) 特定波长带内的集成热辐射.
主要成果:
- 为火球热辐射剂量建立了一个精确的动态模型.
- 使用2-5μm频段的火球试验数据计算热量剂量.
- 结果显示,计算的热剂量大约是斯蒂芬-博尔茨曼全频计算的1/2.5.
结论:
- 与斯蒂芬-博尔茨曼公式和现有的静态模型相比,开发的模型提供了更准确的热辐射剂量计算.
- 这种模型可以更好地评估各种弹药的热损伤性能.
- 这些发现对于理解和减轻爆炸事件产生的热危险至关重要.
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