Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

# Influence of Physical Parameters on the Collapse of a Spherical Bubble

Version 1 : Received: 5 December 2020 / Approved: 7 December 2020 / Online: 7 December 2020 (12:46:36 CET)

How to cite: Sun, B. Influence of Physical Parameters on the Collapse of a Spherical Bubble. Preprints 2020, 2020120151 (doi: 10.20944/preprints202012.0151.v1). Sun, B. Influence of Physical Parameters on the Collapse of a Spherical Bubble. Preprints 2020, 2020120151 (doi: 10.20944/preprints202012.0151.v1).

## Abstract

This paper examines the influence of physical parameters on the collapse dynamics of a spherical bubble filled with diatomic gas ($\kappa=7/5$). The present numerical investigation shows that each physical parameter affects the bubble collapse dynamics differently. After comparing the contribution of each physical parameter, it appears that, of all the parameters, the surrounding liquid environment affects the bubble collapse dynamics the most. Meanwhile, surface tension has the weakest influence and can be ignored in the bubble collapse dynamics. However, surface tension must be retained in the initial analysis since this, as well as the pressure difference jointly control initial bubble formation. As an essential part of this study, a general Maple code is provided.

## Subject Areas

Bubble collapse, Rayleigh's modelling, physical parameters, numerical simulation, Maple

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