Suction of splash after impact on dry quick sand

G.A. Caballero Robledo; K.P.D. Kelly; T.A.M. Homan; Joost Weijs; Roger M. van der Meer; Detlef Lohse

doi:10.1007/s10035-012-0326-3

Suction of splash after impact on dry quick sand

G.A. Caballero Robledo, K.P.D. Kelly, T.A.M. Homan, Joost Weijs, Roger M. van der Meer, Detlef Lohse

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

5 Citations (Scopus)

49 Downloads (Pure)

Abstract

It is well known that a splash occurs when an object impacts at high velocity on a liquid¿s surface. If the impact is fast enough, surface tension and air pressure gradients pull the crown-shape splash all the way towards the axis of symmetry, making it to collapse and seal the surface. In this paper we show that splash and surface sealing are also observed in impacts on soft, dry sand. We observe influence of air pressure and grains size on the shape of the splash. By tracking individual grains using high-speed imaging we calculate their acceleration, which results from gravity and drag forces. Assuming friction drag parallel, and pressure drag perpendicular to the direction of motion of grains we estimate the friction and pressure drag contributions to the drag force. Our results support the idea that pressure drag from Bernoulli effect is at the origin of the surface seal.

Original language	English
Pages (from-to)	179-184
Journal	Granular matter
Volume	14
Issue number	2
DOIs	https://doi.org/10.1007/s10035-012-0326-3
Publication status	Published - 2012

Keywords

METIS-288425
IR-81802

Access to Document

10.1007/s10035-012-0326-3

Caballero12suction
open

Fingerprint Dive into the research topics of 'Suction of splash after impact on dry quick sand'. Together they form a unique fingerprint.

Cite this

@article{4472ec3558f844bf8f16a4a657c64676,

title = "Suction of splash after impact on dry quick sand",

abstract = "It is well known that a splash occurs when an object impacts at high velocity on a liquid¿s surface. If the impact is fast enough, surface tension and air pressure gradients pull the crown-shape splash all the way towards the axis of symmetry, making it to collapse and seal the surface. In this paper we show that splash and surface sealing are also observed in impacts on soft, dry sand. We observe influence of air pressure and grains size on the shape of the splash. By tracking individual grains using high-speed imaging we calculate their acceleration, which results from gravity and drag forces. Assuming friction drag parallel, and pressure drag perpendicular to the direction of motion of grains we estimate the friction and pressure drag contributions to the drag force. Our results support the idea that pressure drag from Bernoulli effect is at the origin of the surface seal.",

keywords = "METIS-288425, IR-81802",

author = "{Caballero Robledo}, G.A. and K.P.D. Kelly and T.A.M. Homan and Joost Weijs and {van der Meer}, {Roger M.} and Detlef Lohse",

year = "2012",

doi = "10.1007/s10035-012-0326-3",

language = "English",

volume = "14",

pages = "179--184",

journal = "Granular matter",

issn = "1434-5021",

publisher = "Springer",

number = "2",

}

TY - JOUR

T1 - Suction of splash after impact on dry quick sand

AU - Caballero Robledo, G.A.

AU - Kelly, K.P.D.

AU - Homan, T.A.M.

AU - Weijs, Joost

AU - van der Meer, Roger M.

AU - Lohse, Detlef

PY - 2012

Y1 - 2012

N2 - It is well known that a splash occurs when an object impacts at high velocity on a liquid¿s surface. If the impact is fast enough, surface tension and air pressure gradients pull the crown-shape splash all the way towards the axis of symmetry, making it to collapse and seal the surface. In this paper we show that splash and surface sealing are also observed in impacts on soft, dry sand. We observe influence of air pressure and grains size on the shape of the splash. By tracking individual grains using high-speed imaging we calculate their acceleration, which results from gravity and drag forces. Assuming friction drag parallel, and pressure drag perpendicular to the direction of motion of grains we estimate the friction and pressure drag contributions to the drag force. Our results support the idea that pressure drag from Bernoulli effect is at the origin of the surface seal.

AB - It is well known that a splash occurs when an object impacts at high velocity on a liquid¿s surface. If the impact is fast enough, surface tension and air pressure gradients pull the crown-shape splash all the way towards the axis of symmetry, making it to collapse and seal the surface. In this paper we show that splash and surface sealing are also observed in impacts on soft, dry sand. We observe influence of air pressure and grains size on the shape of the splash. By tracking individual grains using high-speed imaging we calculate their acceleration, which results from gravity and drag forces. Assuming friction drag parallel, and pressure drag perpendicular to the direction of motion of grains we estimate the friction and pressure drag contributions to the drag force. Our results support the idea that pressure drag from Bernoulli effect is at the origin of the surface seal.

KW - METIS-288425

KW - IR-81802

U2 - 10.1007/s10035-012-0326-3

DO - 10.1007/s10035-012-0326-3

M3 - Article

VL - 14

SP - 179

EP - 184

JO - Granular matter

JF - Granular matter

SN - 1434-5021

IS - 2

ER -