Research Papers: Flows in Complex Systems

Compressible Liquid Impact Against a Rigid Body

[+] Author and Article Information
Arthur Dyment

Emeritus Professor
Laboratoire de Mécanique de Lille,
CNRS UMR 8107,
Université Lille-Nord de France,
Villeneuve d'Ascq 59655, France,
e-mail: arthur.dyment@univ-lille1.fr

Contributed by the Fluids Engineering Division of ASME for publication in the JOURNAL OF FLUIDS ENGINEERING. Manuscript received March 2, 2014; final manuscript received September 13, 2014; published online October 21, 2014. Editor: Malcolm J. Andrews.

J. Fluids Eng 137(3), 031102 (Oct 21, 2014) (5 pages) Paper No: FE-14-1108; doi: 10.1115/1.4028597 History: Received March 02, 2014; Revised September 13, 2014

Impingement of a water jet on a rigid wall and entry of a rigid body into water are subject to common effects of compressibility, occurring during a very short period. Thanks to order of magnitude estimates and application of the fundamental laws of conservation, the extent and the duration of the domain of highly compressed water are obtained in terms of the Mach number and of the curvature at the tip of the jet, or of the projectile. The model works for jet fronts and body profiles of any shape.

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Grahic Jump Location
Fig. 1

Impact of a round liquid jet. I: compressed kernel; II: transition zone; OP: osculating parabola.

Grahic Jump Location
Fig. 2

Impact of a flattened liquid jet. I: compressed kernel; II: transition zone.

Grahic Jump Location
Fig. 3

The entry impact phase. I: compressed kernel; II: transition zone.




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