arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1804.03381physics.flu-dyn
收藏

液滴流-不混溶喷流碰撞:区域和碎裂机制

Drop Stream - Immiscible Jet Collisions: Regimes and Fragmentation Mechanisms

Carole Planchette, Hannes Hinterbichler, Günter Brenn

摘要:

研究了连续液体射流与规则的不混溶液滴流的碰撞。选择不混溶的液体,即用于连续射流的硅油和用于液滴流的甘油水溶液,以使液滴能够被射流液体完全润湿。实验确定了四种不同的制度:液滴在射流中,封装没有卫星,封装与卫星从射流液体和混合碎片。在射流制度,潜在的新的应用程序的极大兴趣的下降,对应于一个定期流的滴嵌入在一个连续的射流和描述和报告的第一次。使用众所周知的方面的下降碰撞和射流稳定性,我们建议建立模型之间的过渡喷射制度和其他的下降。两个无量纲的参数来自于此分析,从而用于产生一个简单的政权地图,在射流政权的下降,可以很好地区分从其他结果。

英文摘要:

We investigate the collision of a continuous liquid jet with a regular stream of immiscible droplets. The immiscible liquids, namely silicon oil for the continuous jet and an aqueous glycerol solution for the drop stream, are selected to enable the total wetting of the drops by the jet liquid. Four different regimes are experimentally identified: drops in jet, encapsulation without satellites, encapsulation with satellites from the jet liquid and mixed fragmentation. The drops in jet regime, potentially of great interest for new applications, corresponds to a regular stream of drops embedded in a continuous jet and is described and reported for the first time. Using well known aspects of drop collision and jet stability, we propose to model the transition between the drops in jet regime and the others. Two dimensionless parameters are derived from this analysis which are thus used to produce a simple regime map where the drops in jet regime can be well distinguished from the other outcomes.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑