期刊
PHYSICAL REVIEW LETTERS
卷 118, 期 7, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.074502
关键词
-
资金
- ILASS-Japan
- Foundation for the Promotion of Industrial Explosives Technology
- Japan Society for the Promotion of Science KAKENHI [JP15K14246, S15164]
- Agence Nationale de la Recherche [ANR-15-CE30-0015-03]
- Grants-in-Aid for Scientific Research [15J04632, 15K14246] Funding Source: KAKEN
- Agence Nationale de la Recherche (ANR) [ANR-15-CE30-0015] Funding Source: Agence Nationale de la Recherche (ANR)
A traditional hand-held firework generates light streaks similar to branched pine needles, with ever smaller ramifications. These streaks are the trajectories of incandescent reactive liquid droplets bursting from a melted powder. We have uncovered the detailed sequence of events, which involve a chemical reaction with the oxygen of air, thermal decomposition of metastable compounds in the melt, gas bubble nucleation and bursting, liquid ligaments and droplets formation, all occurring in a sequential fashion. We have also evidenced a rare instance in nature of a spontaneous fragmentation process involving a direct cascade from big to smaller droplets. Here, the self-sustained direct cascade is shown to proceed over up to eight generations, with well-defined time and length scales, thus answering a century old question, and enriching, with a new example, the phenomenology of comminution.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据