Evolution of a strong electrovortex flow in a cylindrical cell

Ilya Kolesnichenko, Peter Frick, Vladislav Eltishchev, Sergei Mandrykin, and Frank Stefani

Phys. Rev. Fluids 5, 123703 – Published 28 December 2020

Abstract

The mechanism of poloidal flow suppression in an electrovortex flow (EVF) is verified in a liquid metal experiment and supported by numerical simulations. Beyond a certain threshold of azimuthal forcing, a strong poloidal EVF flow develops only transiently, before the centrifugal forces of the slowly generated swirl compensate the EVF-driving forces. This result shows that EVFs can become of particular importance in large-scale liquid metal batteries, especially during the switch-on regime when the transient poloidal flows can be up to two orders of magnitude stronger than those expected in the saturated regime.

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Received 1 July 2020
Accepted 7 December 2020

DOI:https://doi.org/10.1103/PhysRevFluids.5.123703

Physics Subject Headings (PhySH)

Flow instability Magnetohydrodynamics Turbulent mixing Vortex flows

Fluid Dynamics

Authors & Affiliations

Ilya Kolesnichenko ¹, Peter Frick ¹, Vladislav Eltishchev ¹, Sergei Mandrykin ¹, and Frank Stefani ²

¹Institute of Continuous Media Mechanics, Academician Korolev, 1, Perm 614013, Russia
²Helmholtz Zentrum Dresden-Rossendorf, Bautzner Landstrasse 400, D-01328 Dresden, Germany

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Issue

Vol. 5, Iss. 12 — December 2020

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