空间强爆炸热辐射传输及其波长敏感性研究

张志远; 郝建红; 张艺洁; 张芳; 赵强; 范杰清; 董志伟

doi:10.11884/HPLPB202537.250100

空间强爆炸热辐射传输及其波长敏感性研究

doi: 10.11884/HPLPB202537.250100

1.
华北电力大学电气与电子工程学院，北京 102206
2.
北京应用物理与计算数学研究所，北京 100094

基金项目: 国家自然科学基金项目(12205024)

详细信息

作者简介:
张志远，2458543129@qq.com

通讯作者:
张　芳，fangzhang328@163.com。

中图分类号: TL72
计量
- 文章访问数: 21
- HTML全文浏览量: 13
- PDF下载量: 5
- 被引次数: 0
出版历程
- 收稿日期: 2025-04-25
- 修回日期: 2025-06-17
- 录用日期: 2025-06-10
- 网络出版日期: 2025-06-25

Thermal radiation transport and its wavelength sensitivity in intense space explosions

1.
Faculty of Electrical and Electronic Engineering, North China Electric Power University, Beijing 102206, China
2.
Institute of Applied Physics and Computational Mathematics, Beijing 100094, China

摘要

摘要: 通过建立热辐射脉冲输运模型，结合无量纲化处理与数值模拟方法，量化不同时刻、不同波段及传输距离下的热辐射能量速率与累积能量。重点分析大气透过率与空气密度比对热辐射能量分布的影响，揭示了强爆炸热辐射在空间传输中的规律及其对波长的敏感性。结果表明：时间维度上，热辐射累积能量随时间增加而增长，且增长速率逐渐降低，在火球复燃阶段时可见光波段热辐射累积能量占比略高，在火球冷却阶段则由红外波段占主导。空间维度上，随传输距离增长热辐射能分布规律为海拔越低热辐射能越小，直到一定传输距离后热辐射能空间分布趋于稳定。建立的模型可预测任意爆炸条件下特定位置的热辐射能量分布，为波长敏感材料的防护设计提供理论支撑。
- 强爆炸 /
- 大气传输 /
- 数值模拟 /
- 大气透过率 /
- 热辐射脉冲输运模型
Abstract: This study establishes a thermal radiation pulse transport model to quantify the energy release rate and cumulative energy of thermal radiation across temporal variations, spectral bands, and propagation distances through dimensionless processing and numerical simulations. Special emphasis is placed on analyzing the influence of atmospheric transmittance and air density ratios on the spatial distribution of thermal radiation energy, revealing the propagation characteristics of strong explosion-induced thermal radiation in spatial transmission and its wavelength dependence. The results demonstrate that temporally, the cumulative thermal radiation energy increases with time while exhibiting a gradually decreasing growth rate. During the fireball re-ignition phase, the visible band contributes a marginally higher proportion to cumulative energy, whereas the infrared band dominates during the cooling phase. Spatially, the thermal radiation energy decreases with lower altitude as propagation distance extends, until reaching a stabilization threshold where the spatial distribution becomes relatively constant. The developed model enables prediction of thermal radiation energy distribution at specific locations under arbitrary explosion conditions, providing theoretical support for protective design of wavelength-sensitive materials.
- strong explosion /
- atmospheric transmission /
- numerical simulation /
- atmospheric transmittance /
- thermal radiation pulse transport model

HTML全文

图 1 不同时刻有效温度及其对应的光谱特征

Figure 1. Effective temperature at different times and its corresponding spectral characteristics

下载: 全尺寸图片幻灯片

图 2 一定条件下，热辐射功率随时间变化曲线及其归一化曲线

Figure 2. Under certain conditions, the curve of thermal radiation power versus time and its normalization curve

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图 3 不同时间下，累积热辐射能随空间传输距离变化特征

Figure 3. Variation characteristics of cumulative thermal radiation energy with spatial transmission distance at different times

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图 4 3 s时刻，不同传输距离热辐射累积能量分布（每一距离各自归一化色谱）

Figure 4. Cumulative energy distribution of thermal radiation at different transmission distances at 3s (each distance has its own normalized chromatogram)

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图 5 不同时间下，热辐射能速率随空间传输距离变化特征

Figure 5. Variation characteristics of thermal radiation energy rate with space transmission distance at different time

下载: 全尺寸图片幻灯片

图 6 3 s时刻，不同波段空间热辐射平均累积能量分布及所占比例

Figure 6. Average cumulative energy distribution and proportion of space thermal radiation in different wavebands at 3 s

下载: 全尺寸图片幻灯片

图 7 传输距离1 km，不同时间和波段空间热辐射累积能量及所占比例

Figure 7. Transmission distance 1 km, accumulated energy and proportion of space thermal radiation in different time and wave bands

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图 8 不同时间下，不同波段热辐射能速率随传输距离变化特征

Figure 8. Variation characteristics of thermal radiation energy rate with transmission distance at different time bands

下载: 全尺寸图片幻灯片

图 9 不同距离下，红外波段与紫外波段热辐射能速率比值随时间变化特征

Figure 9. Variation characteristics of the ratio of thermal radiation energy rate in infrared and ultraviolet bands with time at different distances

下载: 全尺寸图片幻灯片

图 10 两个测试点的热辐射数据

Figure 10. The thermal radiation data of the two test points

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表 1 输入参数

Table 1. Input parameter

explosive center coordinates/m	explosive equivalent/kt	query time/s	query point coordinates/m	query band/um
（0 0 5000）	100	1	（1000 1000 0）	0.9～1.0
（0 0 5000）	100	1	（1000 1000 10000）	0.9～1.0
（0 0 5000）	100	1	（1000 1000 0）	0.2～4.5
（0 0 5000）	100	0.5	（1000 1000 0）	0.2～4.5
（0 0 5000）	100	1.5	（1000 1000 0）	0.2～4.5
（0 0 5000）	350	1	（1000 1000 0）	0.2～4.5

下载: 导出CSV

表 2 输出参数

Table 2. Output parameter

full band cumulative energy/J	full band energy rate/(J/s)	UV band Cumulative energy /J	UV band energy rate/(J/s)	visible band cumulative energy/J	visible band energy rate/(J/s)	infrared band cumulative energy/J	infrared band energy rate/(J/s)
4.61e03	5.34e03	0	0	0	0	4.61e03	5.34e03
9.38e03	1.08e04	0	0	0	0	9.38e03	1.08e04
9.17e04	8.34e04	5.42e03	1.07e03	3.70e04	2.12e04	4.93e04	6.11e04
3.36e04	1.33e05	3.13e03	9.47e03	1.58e04	5.90e04	1.47e04	6.46e04
1.17e05	2.62e04	5.56e03	1.37e01	4.13e04	1.75e03	7.05e04	2.45e04
9.18e04	8.34e04	5.42e03	1.07e03	3.7e04	2.12e04	4.94e04	6.11e04

下载: 导出CSV

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