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在超临界水中增强的燃烧,由水下电气爆炸引起
1Beijing Institute of Technology, State Key Laboratory of Explosion Science and Safety Protection, Beijing 100081, China.
Physical review. E
|February 20, 2025
概括
水下爆炸泡触发了超临界水中的燃烧. 这项研究分析了泡动力学和光辐射,揭示了在极端水力动力学条件下金属燃烧的洞察力.
科学领域:
- 物理化学 物理化学
- 材料科学 材料科学 材料科学
- 流体动力学 流体动力学
背景情况:
- 在超临界水中金属的燃烧是很少理解的.
- 水下爆炸泡造成极端条件 (高温和高压).
研究的目的:
- 为了研究由水下爆炸泡产生的超临界水引起的燃烧.
- 分析燃烧过程中泡振荡和光辐射的动态.
主要方法:
- 通过在水箱中的线的电放电启动水下爆炸泡.
- 记录气泡半径振荡和光辐射.
- 观察由于水力动力学不稳定性而导致的发光停止.
主要成果:
- 在压缩泡中实现了超临界水条件.
- 观察到微型颗粒的强烈点火.
- 发光辐射持续了近一毫秒,与蒸汽-液体界面流相关.
结论:
- 水下爆炸泡可以有效地诱导超临界水中的金属燃烧.
- 水力动力学不稳定性在燃烧动力学和排放特性中起作用.
- 这项研究为研究极端条件下的复杂反应系统提供了基础.
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