Impact of a high-speed train of microdrops on a liquid pool

Wilco Bouwhuis; Xin Huang; Chon U Chan; Philipp E. Frommhold; Claus-Dieter Ohl; Detlef Lohse; Jacco H. Snoeijer; Devaraj van der Meer

doi:10.1017/jfm.2016.105

Impact of a high-speed train of microdrops on a liquid pool

Wilco Bouwhuis, Xin Huang, Chon U Chan, Philipp E. Frommhold, Claus-Dieter Ohl, Detlef Lohse, Jacco H. Snoeijer, Devaraj van der Meer

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Abstract

A train of high-speed microdrops impacting on a liquid pool can create a very deep and narrow cavity, reaching depths more than 1000 times the size of the individual drops. The impact of such a droplet train is studied numerically using boundary integral simulations. In these simulations, we solve the potential flow in the pool and in the impacting drops, taking into account the influence of liquid inertia, gravity and surface tension. We show that for microdrops the cavity shape and maximum depth primarily depend on the balance of inertia and surface tension and discuss how these are influenced by the spacing between the drops in the train. Finally, we derive simple scaling laws for the cavity depth and width.

Original language	English
Pages (from-to)	850-868
Number of pages	19
Journal	Journal of fluid mechanics
Volume	792
DOIs	https://doi.org/10.1017/jfm.2016.105
Publication status	Published - 2016

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2023 OA procedure

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10.1017/jfm.2016.105

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title = "Impact of a high-speed train of microdrops on a liquid pool",

abstract = "A train of high-speed microdrops impacting on a liquid pool can create a very deep and narrow cavity, reaching depths more than 1000 times the size of the individual drops. The impact of such a droplet train is studied numerically using boundary integral simulations. In these simulations, we solve the potential flow in the pool and in the impacting drops, taking into account the influence of liquid inertia, gravity and surface tension. We show that for microdrops the cavity shape and maximum depth primarily depend on the balance of inertia and surface tension and discuss how these are influenced by the spacing between the drops in the train. Finally, we derive simple scaling laws for the cavity depth and width.",

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author = "Wilco Bouwhuis and Xin Huang and Chan, {Chon U} and Frommhold, {Philipp E.} and Claus-Dieter Ohl and Detlef Lohse and Snoeijer, {Jacco H.} and {van der Meer}, Devaraj",

year = "2016",

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AU - Bouwhuis, Wilco

AU - Huang, Xin

AU - Chan, Chon U

AU - Frommhold, Philipp E.

AU - Ohl, Claus-Dieter

AU - Lohse, Detlef

AU - Snoeijer, Jacco H.

AU - van der Meer, Devaraj

PY - 2016

Y1 - 2016

N2 - A train of high-speed microdrops impacting on a liquid pool can create a very deep and narrow cavity, reaching depths more than 1000 times the size of the individual drops. The impact of such a droplet train is studied numerically using boundary integral simulations. In these simulations, we solve the potential flow in the pool and in the impacting drops, taking into account the influence of liquid inertia, gravity and surface tension. We show that for microdrops the cavity shape and maximum depth primarily depend on the balance of inertia and surface tension and discuss how these are influenced by the spacing between the drops in the train. Finally, we derive simple scaling laws for the cavity depth and width.

AB - A train of high-speed microdrops impacting on a liquid pool can create a very deep and narrow cavity, reaching depths more than 1000 times the size of the individual drops. The impact of such a droplet train is studied numerically using boundary integral simulations. In these simulations, we solve the potential flow in the pool and in the impacting drops, taking into account the influence of liquid inertia, gravity and surface tension. We show that for microdrops the cavity shape and maximum depth primarily depend on the balance of inertia and surface tension and discuss how these are influenced by the spacing between the drops in the train. Finally, we derive simple scaling laws for the cavity depth and width.

KW - 2023 OA procedure

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DO - 10.1017/jfm.2016.105

M3 - Article

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VL - 792

SP - 850

EP - 868

JO - Journal of fluid mechanics

JF - Journal of fluid mechanics

ER -

Impact of a high-speed train of microdrops on a liquid pool

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