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Comparison between low-order and high-order acoustic pressure solvers for bubbly media computations

Comparison between low-order and high-order acoustic pressure solvers for bubbly media computations

Lebon, G. S. Bruno, Tzanakis, I., Pericleous, K. A. ORCID: 0000-0002-7426-9999 and Eskin, D. G. (2015) Comparison between low-order and high-order acoustic pressure solvers for bubbly media computations. Journal of Physics: Conference Series, 656 (012134). pp. 1-4. ISSN 1742-6588 (Print), 1742-6596 (Online) (doi:https://doi.org/10.1088/1742-6596/656/1/012134)

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Abstract

Numerical modelling is a useful tool for the fundamental study of acoustic cavitation treatment in liquid metals. This treatment, also known as ultrasonic melt processing, significantly improves the properties and quality of metallic materials. However, the mechanisms leading to these observed improvements are still unclear and a fundamental study of cavitation treatment is required to understand this process. In this endeavour, this paper compares the use of high-order discretization schemes for solving acoustic pressures in cavitating liquids with its low-order counterpart. A fourth order scheme is shown to be more stable and accurate than a second order scheme when taking into account the acceleration of bubbles before their collapse, and is recommended for the full cavitation modelling of acoustic treatment of liquid metals.

Item Type: Article
Additional Information: Open Access funded by Engineering and Physical Sciences Research Council under the terms of the Creative Commons Attribution 3.0 Licence (CC BY 3.0)
Uncontrolled Keywords: Cavitation; Ultrasonic melt processing; Acoustics
Faculty / Department / Research Group: Faculty of Architecture, Computing & Humanities
Faculty of Architecture, Computing & Humanities > Centre for Numerical Modelling & Process Analysis (CNMPA) > Computational Science & Engineering Group (CSEG)
Faculty of Architecture, Computing & Humanities > Department of Mathematical Sciences
Last Modified: 02 Mar 2019 15:53
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/14195

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