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Magneto-hydrodynamic stability of a liquid metal battery in discharge

Magneto-hydrodynamic stability of a liquid metal battery in discharge

Tucs, A., Bojarevics, V. ORCID logoORCID: https://orcid.org/0000-0002-7326-7748 and Pericleous, K. ORCID logoORCID: https://orcid.org/0000-0002-7426-9999 (2018) Magneto-hydrodynamic stability of a liquid metal battery in discharge. EPL (Europhysics Letters), 124 (2):24001. ISSN 0295-5075 (Print), 1286-4854 (Online) (doi:10.1209/0295-5075/124/24001)

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Abstract

All liquid three layer batteries are intended as large scale electrical energy storage. The paper investigates long wave interfacial instabilities driven by the electromagnetic forces during dynamic phases of the battery charging/discharging. The liquid metal battery of 20 cm size with sodium metal anode, which is a candidate for experimental and commercial implementation, is shown to be unstable at the discharge state when the top metal layer depth is reduced below a critical level. The numerical model includes the effects of viscous friction and the horizontal wave velocities. The instability does not depend on the initial interface perturbation type.

Item Type: Article
Uncontrolled Keywords: Hydrodynamic waves, Magnetohydrodynamics and electrohydrodynamics
Subjects: Q Science > QA Mathematics
Faculty / School / Research Centre / Research Group: 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)
Faculty of Engineering & Science
Last Modified: 04 Mar 2022 13:06
URI: http://gala.gre.ac.uk/id/eprint/22231

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