High-Speed Two-Dimensional Measurements of Flame Propagation Velocity and Temperature Distribution of TiH<sub>2</sub> Dust Flame

Yangfan CHENG; Zhonghua WANG; Fangfang HU; Beibei ZHANG; Yu XIA; Zhaowu SHEN

doi:10.12382/bgxb.2021.0842

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High-Speed Two-Dimensional Measurements of Flame Propagation Velocity and Temperature Distribution of TiH₂ Dust Flame

更新时间：2025-08-18

- High-Speed Two-Dimensional Measurements of Flame Propagation Velocity and Temperature Distribution of TiH₂ Dust Flame
- Acta Armamentarii Vol. 44, Issue 4, Pages: 1181-1192(2023)
- 作者机构：
  
  1. 安徽理工大学深部煤矿开采响应与灾害防治国家重点实验室, 安徽淮南 232001
  2. 安徽理工大学化学工程学院, 安徽淮南 232001
  3. 安徽理工大学安徽省爆破器材与技术工程实验室, 安徽淮南 232001
  4. 中国科学技术大学工程科学学院, 安徽合肥 230027
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2021.0842
  CLC：
- Received：12 December 2021，
  
  Published Online：25 July 2023，
  
  Published：28 April 2023
- 稿件说明：
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Yangfan CHENG, Zhonghua WANG, Fangfang HU, et al. High-Speed Two-Dimensional Measurements of Flame Propagation Velocity and Temperature Distribution of TiH₂ Dust Flame[J]. Acta Armamentarii, 2023, 44(4): 1181-1192.
DOI：

Yangfan CHENG, Zhonghua WANG, Fangfang HU, et al. High-Speed Two-Dimensional Measurements of Flame Propagation Velocity and Temperature Distribution of TiH₂ Dust Flame[J]. Acta Armamentarii, 2023, 44(4): 1181-1192. DOI： 10.12382/bgxb.2021.0842.

摘要

为探究储氢合金TiH

在温压弹中应用的可行性

利用开放式和半开放式哈特曼管

分别模拟温压弹在空中和地下坑道内的爆炸过程

并利用基于比色测温和轮廓检测技术的高速二维测量平台

研究不同浓度TiH

粉尘云火焰特征参数及其影响因素。实验结果表明:在开放空间内

TiH

粉尘火焰温度在2150~2400K范围内

随着粉尘浓度的增加

火焰温度呈下降趋势

其初期火焰传播速度和加速度受粉尘浓度影响不大

后期随浓度的增加而增加;在管道受限空间内

不同浓度TiH

粉尘云稳定燃烧的温度都在2430K左右

粉尘浓度越大、火焰传播到顶部所需时间越短

管道内粉尘的稳定火焰温度较开放空间内的高50~210K

其火焰传播速度是开放空间内的 6~15倍。与传统爆炸测试手段相比

比色测温方法可以准确重构某区域的瞬态温度分布云图

轮廓检测技术可以实现火焰前锋面速度和加速度的精确测量

从而为温压弹的配方设计和毁伤效能鉴定提供了一种新的技术手段。

Abstract

In order to explore the application feasibility of hy

drogen storage alloy TiH

in thermobaric bombs

an open and a semi-open Hartmann tube were used to simulate the explosion processes of a thermobaric bomb in the air and underground tunnels

respectively. By using the two-dimensional high-speed measurement platform on basis of the colorimetric thermometry and contour detection methods

flame characteristic parameters and influencing factors of TiH

dust cloud with different concentrations were studied. The experimental results showed that: in the open space

the flame temperature of TiH

dust was in the range of 2150-2400K

and the flame temperature decreased with the increase of dust concentration; the flame propagation velocity and acceleration were not affected by the dust concentration in the early stage

but increased with the increasing dust concentration in the later stage; in the confined space of a pipeline

the temperature of dust clouds with different concentrations of TiH

during stable combustion were around 2430K

and the higher the dust concentration

the shorter the flame propagation time to the top; the stable flame temperature of dust clouds in the pipeline was 50-210K higher than that in the open space

and the flame propagation velocity was 6-15 times than that in the open space. Compared with the traditional explosion testing methods

the colorimetric thermometry method can precisely measure the transient temperature distribution of a certain zone

and the contour detection method can accurately measure the propagation velocity and acceleration of flame front surface

which may provide a new technical means for the formulation design and damage effectiveness evaluation of thermobaric bombs.

关键词

Keywords

references

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High-Speed Two-Dimensional Measurements of Flame Propagation Velocity and Temperature Distribution of TiH2 Dust Flame

DOI：10.12382/bgxb.2021.0842

摘要

Abstract

关键词

Keywords

references

High-Speed Two-Dimensional Measurements of Flame Propagation Velocity and Temperature Distribution of TiH₂ Dust Flame