液滴撞击星形极点时的边缘动力学和液滴喷射

IF 2.5 3区物理与天体物理 Q2 PHYSICS, FLUIDS & PLASMAS

Physical Review Fluids Pub Date : 2024-08-07 DOI:10.1103/physrevfluids.9.083602

Tobias Bauer, Tristan Gilet

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引用次数: 0

摘要

当液滴撞击到固体基底的边缘时，可能会扩散到边缘之外。然后形成由边缘包围的液面，液滴可能从边缘喷射出来。这项工作研究了边缘形状对边缘动力学和后续液滴喷射的影响。报告了液滴撞击星形极点的实验。对边缘和喷射出的液滴都进行了跟踪。提出了一个分析模型来合理解释边缘形状引起的边缘变形幅度。喷射液滴的位置、大小和速度的统计分布也受边缘几何形状的影响。

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Rim dynamics and droplet ejections upon drop impact on star-shaped poles

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Rim dynamics and droplet ejections upon drop impact on star-shaped poles

When a drop impacts next to the edge of a solid substrate, it may spread beyond this edge. It then forms a liquid sheet surrounded by a rim from which droplets may be ejected. This work investigates the influence of the edge shape on the rim dynamics and subsequent droplet ejections. Experiments of drop impacts on star-shaped poles are reported. Both the rim and the ejected droplets are tracked. An analytical model is proposed to rationalize the amplitude of rim deformations induced by the edge shape. Statistical distributions of position, size, and velocity of ejected droplets are also shaped by the edge geometry.

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来源期刊

Physical Review Fluids Chemical Engineering-Fluid Flow and Transfer Processes

CiteScore

5.10

自引率

11.10%

发文量

488

期刊介绍： Physical Review Fluids is APS’s newest online-only journal dedicated to publishing innovative research that will significantly advance the fundamental understanding of fluid dynamics. Physical Review Fluids expands the scope of the APS journals to include additional areas of fluid dynamics research, complements the existing Physical Review collection, and maintains the same quality and reputation that authors and subscribers expect from APS. The journal is published with the endorsement of the APS Division of Fluid Dynamics.