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兵工学报 ›› 2014, Vol. 35 ›› Issue (7): 972-976.doi: 10.3969/j.issn.1000-1093.2014.07.005

• 论文 • 上一篇    下一篇

固体与液体混合燃料抛撒过程数值模拟

陈嘉琛, 张奇, 马秋菊, 黄莹, 刘雪岭, 沈世磊, 李栋   

  1. (北京理工大学 爆炸科学与技术国家重点实验室, 北京 100081)
  • 收稿日期:2013-09-23 修回日期:2013-09-23 上线日期:2014-09-05
  • 通讯作者: 陈嘉琛 E-mail:chenjiachen199109@163.com
  • 作者简介:陈嘉琛(1991—)女硕士研究生
  • 基金资助:
    国家自然科学基金项目(11372044)

Numerical Simulation of Dispersal Process of Solid-liquid Mixed Fuel

CHEN Jia-chen, ZHANG Qi, MA Qiu-ju, HUANG Ying, LIU Xue-ling, SHEN Shi-lei, LI Dong   

  1. (State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology,Beijing 100081, China)
  • Received:2013-09-23 Revised:2013-09-23 Online:2014-09-05
  • Contact: CHEN Jia-chen E-mail:chenjiachen199109@163.com

摘要: 固体与液体混合燃料通过爆炸驱动形成燃料空气炸药云团,其爆轰威力在很大程度上取决于云团的状态,云团分布是云爆装置设计的基础。通过数值模拟,研究了固体与液体混合燃料抛撒过程,在Fluent软件的基础上探索了固体与液体混合燃料抛散的数值模拟方法。计算得到的燃料抛撒随时间和空间的扩散过程,其中径向速度、云团范围和湍流过程与实验结果相吻合。研究结果表明,文中建立的数值模型和计算方法能够较好地模拟固体与液体混合燃料的云雾抛散过程,为云爆装置优化设计提供了基础数据。

关键词: 兵器科学与技术, 燃料空气炸药, 抛撒, 数值模拟, 径向速度

Abstract: The solid-liquid mixed fuel explodes to form a fuel air cloud. The detonation strength depends largely on the air cloud state. The cloud distribution is the base of the design of cloud detonation devices. The dispersal process of solid-liquid mixed fuel is investigated by numerical simulation, and a numerical simulation method of solid-liquid mixed fuel is explored. The diffusion process of fuel dispersal in space and time are obtained. The radial dispersal velocity, cloud range and turbulent diffusion process in simulation agree well with the experimental results. The results show that the numerical model established in this study can simulate the dispersal process of the solid-liquid mixed fuel, which opens a new way of research for the optimal design of FAE devices.

Key words: ordnance science and technology, fuel air explosive, dispersal, numerical simulation, radial velocity

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