Djambazov, Georgi ORCID: https://orcid.org/0000-0001-8812-1269 (2023) Time-dependent numerical modelling of acoustic cavitation in liquid metal driven by electromagnetic induction. Fluids, 8 (3):79. pp. 1-11. ISSN 2311-5521 (Online) (doi:10.3390/fluids8030079)

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Abstract

The numerically simulated method of using electromagnetic field from an alternating current is a patented method to create in liquid metal, under the conditions of resonance, acoustic waves of sufficient strength to cause cavitation and implosion of gas bubbles, leading to beneficial degassing and grain refinement. The modelling stages of electromagnetics are described below along with acoustics in liquids, bubble dynamics, and their interactions. Sample results are presented for a cylindrical container with liquid aluminium surrounded by an induction coil. The possibility of establishing acoustic resonance and sustaining the bubble oscillation at a useful level is demonstrated. Limitations of the time-dependent approach to this multi-physics modelling problem are also discussed.

Item Type:	Article
Additional Information:	This article belongs to the Special Issue Numerical Simulations of Nonlinear Waves.
Uncontrolled Keywords:	time domain; acoustic field; bubbles; electromagnetic force
Subjects:	Q Science > Q Science (General) Q Science > QA Mathematics Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > Centre for Numerical Modelling & Process Analysis (CNMPA) Faculty of Engineering & Science > Centre for Numerical Modelling & Process Analysis (CNMPA) > Computational Science & Engineering Group (CSEG) Faculty of Engineering & Science > School of Computing & Mathematical Sciences (CMS)
Last Modified:	27 Feb 2023 14:37
URI:	http://gala.gre.ac.uk/id/eprint/38662

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