燃烧管内悬浮铝粉燃烧爆炸过程的研究

陈志华; 范宝春; 李鸿志

doi:10.11858/gywlxb.2006.02.008

燃烧管内悬浮铝粉燃烧爆炸过程的研究

doi: 10.11858/gywlxb.2006.02.008

南京理工大学瞬态物理国家重点实验室，江苏南京 210094

详细信息

通讯作者:
陈志华

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出版历程
- 收稿日期: 2004-11-29
- 修回日期: 2005-04-12
- 发布日期: 2006-06-05

Investigations on Combustion and Explosion Process of Suspended Aluminum Particles in a Large Combustion Tube

National Key Laboratory of Transient Physics, Nanjing University of Science and Technology, Nanjing 210094, China

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Corresponding author: CHEN Zhi-Hua

摘要

摘要: 铝粉的燃烧与加速机理一直是相关部门研究的热点。为了深入研究其在受限空间内的燃烧与传播特性，基于双流体模型、湍流k-模型以及铝粉燃烧等模型，选用SIMPLE格式，对大型卧式燃烧管内铝粉颗粒与空气的两相悬浮流湍流燃烧加速转爆炸现象进行了数值研究，得到了铝粉火焰在管内的燃烧传播过程中管内各相关参数的详细变化情况，并与相关的实验结果吻合。
- 铝粉 /
- 湍流燃烧 /
- 数值模拟 /
- 爆炸
Abstract: The combustion and acceleration mechanism of aluminum particles has always been the focus of some related research institutes, due to its potential application value. In the present paper, to further the investigation of combustion and propagation characteristics of aluminum particles in a limited space, the two-fluid model, turbulent k- model and combustion model of aluminum particles have been introduced to simulate the combustion propagation of aluminum suspension flow in a large horizontal tube. The SIMPLE scheme has been adopted as the main calculating method to simulate the whole propagation process of two-phase, aluminum particles-air flow in a large and long horizontal tube. The time history of all parameters of two-phase flow during the combustion and propagation process has been revealed based on our calculated results, which agrees well with our previous experimental results.
- aluminum particles /
- turbulent combustion /
- numerical simulation /
- explosion

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参考文献(19)

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