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Journal Articles Journal of Fluid Mechanics Year : 2014

Explosions at the water surface

Abstract

We study the shape and dynamics of cavities created by the explosion of firecrackers at the surface of a large pool of water. Without confinement, the explosion generates a hemispherical air cavity which grows, reaches a maximum size and collapses in a generic w-shape to form a final central jet. When a rigid open tube confines the firecracker, the explosion produces a cylindrical cavity that expands without ever escaping the free end of the tube. We discuss a potential flow model, which captures most of these features
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Dates and versions

hal-01057751 , version 1 (25-08-2014)

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Adrien Benusiglio, David Quéré, Christophe Clanet. Explosions at the water surface. Journal of Fluid Mechanics, 2014, 752 (august), pp.123-139. ⟨10.1017/jfm.2014.255⟩. ⟨hal-01057751⟩
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