Granular Eruptions: Void Collapse and Jet Formation

René Mikkelsen; Michel Versluis; Elmer Koene; Gert-Wim Bruggert; Deveraj van der Meer; Ko van der Weele; Detlef Lohse

Granular Eruptions: Void Collapse and Jet Formation

René Mikkelsen
, Michel Versluis
, Elmer Koene
, Gert-Wim Bruggert
, Deveraj van der Meer
, Ko van der Weele
, Detlef Lohse

Faculty of Science and Technology

Research output: Non-textual form › Digital or Visual Products › Other research output

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Abstract

Upon impact, sand is blown away in all directions, forming a splash. The ball digs a cylindrical void in the sand and the jet is formed when this void collapses: The focused sand pressure pushes the jet straight up into the air. When the jet comes down again, it breaks up into fragments, i.e., granular clusters. For sufficiently high impact velocity, air is entrained by the collapsing void, forming an air bubble in the sand. This bubble slowly rises to the surface, and upon reaching it causes a granular eruption. This looks like a boiling liquid, or even a volcano! Gallery of Fluid Motion Award-winning entry 2002

Original language	English
Media of output	Online
Size	44 MB
Publication status	Published - 2002

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Granular EruptionsFinal published version, 43.9 MB

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Granular eruptions: Void Collapse and Jet Formation
Mikkelsen, R., Versluis, M., Koene, E., Bruggert, G.-W., van der Meer, D., van der Weele, K. & Lohse, D., 2002, In: Physics of fluids. 14, 9, p. -
Research output: Contribution to journal › Article › Academic › peer-review

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Cite this

@misc{4715e15dc68a43c9964956cd25cee114,

title = "Granular Eruptions: Void Collapse and Jet Formation",

abstract = "Upon impact, sand is blown away in all directions, forming a splash. The ball digs a cylindrical void in the sand and the jet is formed when this void collapses: The focused sand pressure pushes the jet straight up into the air. When the jet comes down again, it breaks up into fragments, i.e., granular clusters. For sufficiently high impact velocity, air is entrained by the collapsing void, forming an air bubble in the sand. This bubble slowly rises to the surface, and upon reaching it causes a granular eruption. This looks like a boiling liquid, or even a volcano! Gallery of Fluid Motion Award-winning entry 2002",

author = "Ren{\'e} Mikkelsen and Michel Versluis and Elmer Koene and Gert-Wim Bruggert and \{van der Meer\}, Deveraj and \{van der Weele\}, Ko and Detlef Lohse",

year = "2002",

language = "English",

}

TY - ADVS

T1 - Granular Eruptions

T2 - Void Collapse and Jet Formation

AU - Mikkelsen, René

AU - Versluis, Michel

AU - Koene, Elmer

AU - Bruggert, Gert-Wim

AU - van der Meer, Deveraj

AU - van der Weele, Ko

AU - Lohse, Detlef

PY - 2002

Y1 - 2002

N2 - Upon impact, sand is blown away in all directions, forming a splash. The ball digs a cylindrical void in the sand and the jet is formed when this void collapses: The focused sand pressure pushes the jet straight up into the air. When the jet comes down again, it breaks up into fragments, i.e., granular clusters. For sufficiently high impact velocity, air is entrained by the collapsing void, forming an air bubble in the sand. This bubble slowly rises to the surface, and upon reaching it causes a granular eruption. This looks like a boiling liquid, or even a volcano! Gallery of Fluid Motion Award-winning entry 2002

AB - Upon impact, sand is blown away in all directions, forming a splash. The ball digs a cylindrical void in the sand and the jet is formed when this void collapses: The focused sand pressure pushes the jet straight up into the air. When the jet comes down again, it breaks up into fragments, i.e., granular clusters. For sufficiently high impact velocity, air is entrained by the collapsing void, forming an air bubble in the sand. This bubble slowly rises to the surface, and upon reaching it causes a granular eruption. This looks like a boiling liquid, or even a volcano! Gallery of Fluid Motion Award-winning entry 2002

M3 - Digital or Visual Products

ER -

Granular Eruptions: Void Collapse and Jet Formation

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Granular eruptions: Void Collapse and Jet Formation

Cite this