粘性液体爆炸抛撒模型

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (17) : 141-145.

论文

粘性液体爆炸抛撒模型

康凯1,2 马峰2 王红英1 王树山2

作者信息 +

The Model of Explosive Dispersion of Viscosity Liquid

KANG Kai1,2, MA Feng2, WANG Hongying1, WANG Shushan2

Author information +

文章历史 +

摘要

粘性液体爆炸抛撒模型的建立对数值模拟粘性液体爆炸抛撒形成的抛撒云团过程具有重要意义。粘性液体爆炸抛撒包含液体初始驱动、空化效应产生、液体环形成、射流形成和断裂、液滴破碎等现象，这是一个复杂的物理过程。根据不同阶段、不同现象流动特征，建立牛顿粘性流体爆炸抛撒数学模型，计算得到液体抛撒速度、抛撒半径以及液滴尺寸分布。计算结果表明抛撒半径与粘度成正比，而抛撒速度衰减曲线曲率与之成反比。为验证数学模型的准确性设计试验，试验结果与结论一致，模型准确性得到验证。

Abstract

The model for process of explosive dispersal of viscosity liquid is of great significance to the numberical simulation of such process. The explosion dispersion of viscosity liquid is a complex physical process that contains: initial driving of fluid, cavitation, formation of fluid ring, formation and fracture of jets, broken of drops. Based on the different stages and phenomenon of flow characteristics, the mathematics model of explosion dispersion of viscous Newtonian fluid is set up. Dispersal velocity of liquid, dispersal radius and distribution of droplets sizes are obtained through calculations. The results show that the dispersal radius are proportional to the viscosity and the curvature of the attenuation curve of speed is inversely proportional to the viscosity. Experiment is designed to test and verify the accuracy of mathematical model. The experimental results coincide with the conclusion, the accuracy of model is validated.

导出引用

康凯1,2 马峰2 王红英1 王树山2. 粘性液体爆炸抛撒模型[J]. 振动与冲击, 2017, 36(17): 141-145

KANG Kai1,2, MA Feng2, WANG Hongying1, WANG Shushan2. The Model of Explosive Dispersion of Viscosity Liquid[J]. Journal of Vibration and Shock, 2017, 36(17): 141-145

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