Droplets on inclined rough surfaces

J. Hyväluoma, Antti Koponen, Pasi Raiskinmäki, J. Timonen

Research output: Contribution to journalArticleScientificpeer-review

39 Citations (Scopus)

Abstract

The behaviour of liquid droplets on inclined heterogeneous surfaces was simulated by the lattice-Boltzmann method using the Shan-Chen multiphase model. The effect of topography of the surface on the contact angle hysteresis was investigated. It is shown in particular, by using anisotropic rough surfaces, how surface topography and thereby the continuity of the three-phase contact line, affect this hysteresis. Our results clearly indicate that the superhydrophobicity of a surface cannot be judged by the contact angle alone.
Original languageEnglish
Pages (from-to)289-293
JournalEuropean Physical Journal E: Soft Matter
Volume23
Issue number3
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

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Contact angle
Hysteresis
topography
hysteresis
Surface topography
Topography
continuity
Liquids
liquids

Cite this

Hyväluoma, J. ; Koponen, Antti ; Raiskinmäki, Pasi ; Timonen, J. / Droplets on inclined rough surfaces. In: European Physical Journal E: Soft Matter. 2007 ; Vol. 23, No. 3. pp. 289-293.
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Droplets on inclined rough surfaces. / Hyväluoma, J.; Koponen, Antti; Raiskinmäki, Pasi; Timonen, J.

In: European Physical Journal E: Soft Matter, Vol. 23, No. 3, 2007, p. 289-293.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Droplets on inclined rough surfaces

AU - Hyväluoma, J.

AU - Koponen, Antti

AU - Raiskinmäki, Pasi

AU - Timonen, J.

PY - 2007

Y1 - 2007

N2 - The behaviour of liquid droplets on inclined heterogeneous surfaces was simulated by the lattice-Boltzmann method using the Shan-Chen multiphase model. The effect of topography of the surface on the contact angle hysteresis was investigated. It is shown in particular, by using anisotropic rough surfaces, how surface topography and thereby the continuity of the three-phase contact line, affect this hysteresis. Our results clearly indicate that the superhydrophobicity of a surface cannot be judged by the contact angle alone.

AB - The behaviour of liquid droplets on inclined heterogeneous surfaces was simulated by the lattice-Boltzmann method using the Shan-Chen multiphase model. The effect of topography of the surface on the contact angle hysteresis was investigated. It is shown in particular, by using anisotropic rough surfaces, how surface topography and thereby the continuity of the three-phase contact line, affect this hysteresis. Our results clearly indicate that the superhydrophobicity of a surface cannot be judged by the contact angle alone.

U2 - 10.1140/epje/i2007-10190-7

DO - 10.1140/epje/i2007-10190-7

M3 - Article

VL - 23

SP - 289

EP - 293

JO - European Physical Journal E: Soft Matter

JF - European Physical Journal E: Soft Matter

SN - 1292-8941

IS - 3

ER -