Influence of Liquid Density and Surface Tension on the Pinning of Sliding Droplets on a Triangular Microstructure

Influence of Liquid Density and Surface Tension on the Pinning of Sliding Droplets on a Triangular Microstructure
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液体密度和表面张力对三角形微结构上滑动液滴钉扎的影响

DOI:
10.1002/ceat.201900029
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发表时间:
2019
影响因子:
2.1
通讯作者:
J.-U. Repke
J.-U. Repke
中科院分区:
工程技术4区
文献类型:
--
作者:
Bonart;J.-U. Repke

文献摘要

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相似文献

滑动液滴在许多工业应用中都是至关重要的。例如涉及多相和液膜的涂层和分离过程。人们经常可以观察到滑动的液滴如何在中途停在固体表面上。润湿缺陷,如表面结构,可能导致滑动液滴的钉扎。为了评估液体密度和表面张力对钉扎的影响,进行了直接的数值模拟。在介绍了模型及其离散化的基础上,对该方法进行了验证。给出了重力驱动液滴在具有液滴大小的结构的倾斜表面上的模拟结果,并讨论了将滑动液滴钉在表面上的观察要求。
Sliding droplets are crucial in many industrial applications. Examples are coating and separation processes involving multiple phases and liquid films. Often one can observe how a sliding droplet halts midstream on a solid surface. Wetting defects such as topographic structures can lead to a pinning of sliding droplets. In order to assess the influence of liquid density and surface tension on the pinning, direct numerical simulations are performed. After the model and its discretization are introduced, the solution is validated. Simulation results of gravity‐driven droplets on inclined surfaces with structures in the size of the droplets are presented and the observed requirements for pinning a sliding droplet to a surface are discussed.
DOI: 10.1016/j.fluiddyn.2008.01.002
发表时间: 2008-07-01
影响因子: 1.5
作者:
He, Qunwu;Kasagi, Nobuhide
通讯作者: Kasagi, Nobuhide
DOI: 10.1063/1.866851
发表时间: 1988-02-01
期刊: PHYSICS OF FLUIDS
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通讯作者: DYSON, DC
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期刊: J. Comput. Phys.
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通讯作者: H. Bonart;Christian Kahle;J. Repke
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