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Ultrasonic Processing for Structure Refinement: An Overview of Mechanisms and Application of the Interdependence Theory
Open AccessArticle

Numerical Modelling of the Ultrasonic Treatment of Aluminium Melts: An Overview of Recent Advances

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Brunel Centre for Advanced Solidification Technology, Brunel University London, Kingston Lane, Uxbridge UB8 3PH, UK
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Oxford Brookes University, Wheatley Campus, Oxford OX33 1HX, UK
3
Computational Science and Engineering Group, University of Greenwich, 30 Park Row, London SE10 9LS, UK
*
Author to whom correspondence should be addressed.
Materials 2019, 12(19), 3262; https://doi.org/10.3390/ma12193262
Received: 17 September 2019 / Revised: 1 October 2019 / Accepted: 3 October 2019 / Published: 6 October 2019
(This article belongs to the Special Issue Ultrasonic Cavitation Treatment of Metallic Alloys)
The prediction of the acoustic pressure field and associated streaming is of paramount importance to ultrasonic melt processing. Hence, the last decade has witnessed the emergence of various numerical models for predicting acoustic pressures and velocity fields in liquid metals subject to ultrasonic excitation at large amplitudes. This paper summarizes recent research, arguably the state of the art, and suggests best practice guidelines in acoustic cavitation modelling as applied to aluminium melts. We also present the remaining challenges that are to be addressed to pave the way for a reliable and complete working numerical package that can assist in scaling up this promising technology. View Full-Text
Keywords: numerical modelling; acoustic cavitation; aluminium; ultrasonic melt treatment; non-linear bubble dynamics; sonoprocessing numerical modelling; acoustic cavitation; aluminium; ultrasonic melt treatment; non-linear bubble dynamics; sonoprocessing
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Lebon, B.; Tzanakis, I.; Pericleous, K.; Eskin, D. Numerical Modelling of the Ultrasonic Treatment of Aluminium Melts: An Overview of Recent Advances. Materials 2019, 12, 3262.

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  • Externally hosted supplementary file 1
    Link: https://figshare.com/authors/Bruno_Lebon/3941993
    Description: The referenced datasets are: [69] B. Lebon, I. Tzanakis, Koulis Pericleous, D. Eskin, P.S. Grant, Ultrasonic liquid metal processing: The essential role of cavitation bubbles in controlling acoustic streaming dataset, (2019). doi:10.17633/rd.brunel.7435457. [73] B. Lebon, G. Salloum-Abou-Jaoude, D. Eskin, I. Tzanakis, Koulis Pericleous, Phillipe Jarry, Numerical modelling of acoustic streaming during the ultrasonic melt treatment of direct-chill (DC) casting dataset, (2019). doi:10.17633/rd.brunel.7610924.v1.
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