论文标题
在液滴碎片期间观察滴入气体内气体腔内的多模式成像
Multimodal imaging for intra-droplet gas-cavity observation during droplet fragmentation
论文作者
论文摘要
在此，使用平面激光诱导的荧光（PLIF）与影子图结合使用来研究水浪漫的Aerobreakup。获取的影子图数据与以前的可视化研究一致，但与PLIF结果不同，从而产生了对碎裂过程的新见解。特别是，PLIF数据揭示了由于液相内气腔的夹层或形成而导致的碎裂过程中液滴拓扑的变化。在某些情况下，可以观察到拓扑修饰是由于这些空腔的存在而产生的。此外，腔体可能充当较弱的斑点，从而促进液滴分裂。
Herein, planar laser-induced fluorescence (PLIF) is used in combination with shadowgraphy to study water-droplet aerobreakup. The acquired shadowgraph data are in agreement with previous visualization studies but differ from the PLIF results, yielding new insights into the fragmentation process. In particular, the PLIF data reveal changes in droplet topology during fragmentation that result from the entrapment or formation of gas cavities inside the liquid phase. In some instances, topological modification can be observed to arise from the presence of these cavities. In addition, the cavities may act as weak spots, facilitating droplet split-off.
