Spreading dynamics of drop impacts

被引：125

作者：

Lagubeau, Guillaume ^{[3
]}

Fontelos, Marco A. ^{[4
]}

Josserand, Christophe ^{[1
,2
]}

Maurel, Agnes ^{[5
]}

Pagneux, Vincent ^{[3
]}

Petitjeans, Philippe ^{[6
]}

机构：

[1] CNRS, Inst DAlembert, F-75005 Paris, France

[2] Univ Paris 06, UMR 7190, F-75005 Paris, France

[3] CNRS, UMR 6613, LAUM, F-72085 Le Mans 9, France

[4] UCM, UC3M, UAM, Inst Ciencias Matemat,ICMAT,CSIC, Madrid 28006, Spain

[5] ESPCI, CNRS, UMR 7587, Inst Langevin,LOA, F-75005 Paris, France

[6] ESPCI, CNRS, UMR 7636, PMMH, F-75005 Paris, France

来源：

JOURNAL OF FLUID MECHANICS | 2012年 / 713卷

关键词：

drops; drops and bubbles; interfacial flows (free surface); FOURIER-TRANSFORM PROFILOMETRY; SOLID-SURFACES; LIQUID-DROP; DEFORMATION; WAVES; MODEL;

D O I：

10.1017/jfm.2012.431

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

We present an experimental study of drop impact on a solid surface in the spreading regime with no splashing. Using the space time-resolved Fourier transform profilometry technique, we can follow the evolution of the drop shape during the impact. We show that a self-similar dynamical regime drives the drop spreading until the growth of a viscous boundary layer from the substrate selects a residual minimal film thickness Finally, we discuss the interplay between capillary and viscous effects in the spreading dynamics, which suggests a pertinent impact parameter.

引用

页码：50 / 60

页数：11

共 32 条

[1] Instant fabrication and selection of folded structures using drop impact [J].