Droplet impact on a dry surface: Triggering the splash with a small obstacle

C. Josserand; L. Lemoyne; R. Troeger; S. Zaleski

doi:10.1017/S0022112004002393

Droplet impact on a dry surface: Triggering the splash with a small obstacle

C. Josserand, L. Lemoyne, R. Troeger, S. Zaleski

Research output: Contribution to journal › Article › peer-review

Abstract

Droplet impact on a dry solid surface is investigated experimentally. A small obstacle made by layers of adhesive tape is located on the solid surface at some distance from the impact centre. The splashing of the drop starts at the tape, as a sheet of liquid shoots upwards. Angle, speed and dynamics of this liquid sheet are investigated as a function of the distance from the impact centre to the obstacle and its height. Reynolds and Weber numbers are kept constant. Volume-of-fluid simulations reproduce the experiments qualitatively. Measured sheet angles are compared with the predictions of a simple theory.

Original language	English
Pages (from-to)	47-56
Number of pages	10
Journal	Journal of Fluid Mechanics
Volume	524
DOIs	https://doi.org/10.1017/S0022112004002393
Publication status	Published - 10 Feb 2005
Externally published	Yes

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title = "Droplet impact on a dry surface: Triggering the splash with a small obstacle",

abstract = "Droplet impact on a dry solid surface is investigated experimentally. A small obstacle made by layers of adhesive tape is located on the solid surface at some distance from the impact centre. The splashing of the drop starts at the tape, as a sheet of liquid shoots upwards. Angle, speed and dynamics of this liquid sheet are investigated as a function of the distance from the impact centre to the obstacle and its height. Reynolds and Weber numbers are kept constant. Volume-of-fluid simulations reproduce the experiments qualitatively. Measured sheet angles are compared with the predictions of a simple theory.",

author = "C. Josserand and L. Lemoyne and R. Troeger and S. Zaleski",

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T1 - Droplet impact on a dry surface

T2 - Triggering the splash with a small obstacle

AU - Josserand, C.

AU - Lemoyne, L.

AU - Troeger, R.

AU - Zaleski, S.

PY - 2005/2/10

Y1 - 2005/2/10

N2 - Droplet impact on a dry solid surface is investigated experimentally. A small obstacle made by layers of adhesive tape is located on the solid surface at some distance from the impact centre. The splashing of the drop starts at the tape, as a sheet of liquid shoots upwards. Angle, speed and dynamics of this liquid sheet are investigated as a function of the distance from the impact centre to the obstacle and its height. Reynolds and Weber numbers are kept constant. Volume-of-fluid simulations reproduce the experiments qualitatively. Measured sheet angles are compared with the predictions of a simple theory.

AB - Droplet impact on a dry solid surface is investigated experimentally. A small obstacle made by layers of adhesive tape is located on the solid surface at some distance from the impact centre. The splashing of the drop starts at the tape, as a sheet of liquid shoots upwards. Angle, speed and dynamics of this liquid sheet are investigated as a function of the distance from the impact centre to the obstacle and its height. Reynolds and Weber numbers are kept constant. Volume-of-fluid simulations reproduce the experiments qualitatively. Measured sheet angles are compared with the predictions of a simple theory.

U2 - 10.1017/S0022112004002393

DO - 10.1017/S0022112004002393

M3 - Article

AN - SCOPUS:14844309306

SN - 0022-1120

VL - 524

SP - 47

EP - 56

JO - Journal of Fluid Mechanics

JF - Journal of Fluid Mechanics

ER -

Droplet impact on a dry surface: Triggering the splash with a small obstacle

Abstract

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