【摘要】 设计了一种有上下平面约束的液体爆炸分散装置,通过阴影照相获得气液界面破碎形态变化的时间序列,并应用平面激光诱导荧光(PLIF)得到了径向膨胀液体环内诱导的荧光照片.采用二维图像处理、分形几何和数值模拟相结合的方法,较系统地分析了实验结果.最后,讨论了液体环及其气液界面运动数学模型建立中的问题.更多还原

【Abstract】 An experimental device for the liquid explosive disseminations with constraints formed by up and down plains was set up. Applying the shadow photograph technology, the time series about the breakup shape of liquid-air interfaces were recorded. And using the PLIF (planar laser induced fluorescence) technology, the fluorescence photos about liquid shell expanding in radial direction were obtained. By means of digital image processing, fractal geometry and numerical simulation methods, systematic analyses to the experimental results were made. Finally some problems about how to establish the mathematical models for describing the unsteady motion of liquid shell and liquid-gas interfaces were discussed.更多还原