基于VOF-DPM方法的液体燃料爆炸抛撒数值模拟

随亚光; 吴玉欣; 仵可; 张国凯; 吴易烜; 魏欣; 李浩

doi:10.12382/bgxb.2025.0535

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基于VOF-DPM方法的液体燃料爆炸抛撒数值模拟

更新时间：2026-05-06

- 基于VOF-DPM方法的液体燃料爆炸抛撒数值模拟
- Numerical Study on Explosive Dispersion of Liquid Fuels Using the VOF-DPM Method
- 兵工学报 2026年47卷第4期页码：250535
- 作者机构：
  
  西北核技术研究所，陕西西安 710024
  南京理工大学安全科学与工程学院，江苏南京 210094
- 作者简介：
  
  通信作者邮箱：suiyaguang@nint.ac.cn
- 基金信息：
  
  国家自然科学基金项目(52278504)
- DOI：10.12382/bgxb.2025.0535
  中图分类号： O382
- 收稿：2025-06-23，
  
  网络首发：2025-12-25，
  
  纸质出版：2026-04
- 稿件说明：
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随亚光, 吴玉欣, 仵可, 等. 基于VOF-DPM方法的液体燃料爆炸抛撒数值模拟[J]. 兵工学报, 2026,47(4):250535.

SUI Yaguang, WU Yuxin, WU Ke, et al. Numerical Study on Explosive Dispersion of Liquid Fuels Using the VOF-DPM Method[J]. Acta Armamentarii, 2026, 47(4): 250535.
随亚光, 吴玉欣, 仵可, 等. 基于VOF-DPM方法的液体燃料爆炸抛撒数值模拟[J]. 兵工学报, 2026,47(4):250535. DOI： 10.12382/bgxb.2025.0535.

SUI Yaguang, WU Yuxin, WU Ke, et al. Numerical Study on Explosive Dispersion of Liquid Fuels Using the VOF-DPM Method[J]. Acta Armamentarii, 2026, 47(4): 250535. DOI： 10.12382/bgxb.2025.0535.

摘要

云爆剂抛撒形成燃料云雾的扩展直径及其变化速率，是影响燃料空气炸药爆轰威力的关键因素。基于开源计算流体力学平台OpenFOAM，开发可压缩两相流VOF-DPM动网格求解器，实现对液体燃料爆炸抛撒过程的高效数值模拟。在实验验证的基础上，进一步研究云爆装置长径比与比药量等参数对抛撒特性的影响规律。研究结果表明：云爆剂抛撒过程可分为三个阶段，呈现先加速后减速的特征；长径比增大可提升燃料抛撒初期速率，当长径比达到3时最终扩展直径达7.2m；比药量参数对抛撒初期扩展速率影响显著，但对云雾最终稳定尺寸作用有限。通过建立冲击波驱动的燃料抛撒多物理场耦合模型，为优化云爆装置结构设计提供了理论依据。

Abstract

The expansion diameter and change rate of fuel cloud resulting from the dispersal of cloud explosive agents are crucial in determining the detonation power of fuel-air explosives. Based on the opensource computational fluid dynamics platform OpenFOAM

a compressible two-phase flow VOF-DPM dynamic mesh solver is developed to achieve the efficient numerical simulation of fuel dispersion process. The numerical results are validated by experimental data. Then the influences of the aspect ratio and specific loading parameters of cloud explosive device on the kinetic characteristics of fuel dispersion are studied. The research shows that the dispersion process of cloud explosive agents can be divided into three stages

following a pattern of accelerating first and then decelerating. A larger aspect ratio increases the initial dispersion rate of the fuel. When the aspect ratio reaches 3

the final expansion diameter is 7.2 meters. The specific loading parameter significantly affects the initial expansion rate

but has a limited effect on the final stable size of the cloud. This paper establishes a multi-physical-field coupling model for shockwave-driven fuel dispersal

providing a theoretical basis and a numerical simulation method for optimizing the structural design of cloud explosive devices.

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references

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