Working Paper Article Version 1 This version is not peer-reviewed

Non-Symmetrical Collapse of an Empty Cylindrical Cavity Studied with Smoothed Particle Hydrodynamics

Version 1 : Received: 11 January 2021 / Approved: 12 January 2021 / Online: 12 January 2021 (15:55:50 CET)

A peer-reviewed article of this Preprint also exists.

Albano, A.; Alexiadis, A. Non-Symmetrical Collapse of an Empty Cylindrical Cavity Studied with Smoothed Particle Hydrodynamics. Appl. Sci. 2021, 11, 3500. Albano, A.; Alexiadis, A. Non-Symmetrical Collapse of an Empty Cylindrical Cavity Studied with Smoothed Particle Hydrodynamics. Appl. Sci. 2021, 11, 3500.

Journal reference: Appl. Sci. 2021, 11, 3500
DOI: 10.3390/app11083500

Abstract

The non-symmetrical collapse of an empty cylindrical cavity is modelled using Smoothed Particle Hydrodynamics. The presence of a nearby surface produces an anisotropic pressure field generating a high velocity jet that hits the surface. The collapse follows a different dynamic based to the initial distance between the centre of the cavity and the surface. When the distance is greater than the cavity radius (detached cavity) the surface is hit by travelling shock waves. When the distance is less than the cavity radius (attached cavity) the surface is directly hit by the jet and later by other shock waves generated in the last stages of the of the collapse. The results show that the surface is hit by a stronger shock when distance between the centre of the cavity and the surface is zero while showing more complex double peaks behaviour for other distances.

Subject Areas

Particle method; Smoothed particle hydrodynamics; Modeling; Simulations; Shock wave

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