Publications Repository - Helmholtz-Zentrum Dresden-Rossendorf
1 PublicationUsing Lorentz forces to control the distribution of bubbles in a vertical tube filled with liquid metal
Heitkam, S.; Tschisgale, S.; Krull, B.; Wetzel, T.; Baake, E.; Fröhlich, J.
Abstract
In this work, a method to increase the residence time of bubbles in tubes or pipes filled with liquid metal is investigated. Imposing a horizontal electric current and a perpendicular horizontal magnetic field generates an upward-directed Lorentz force. This force can counteract gravity and cause floating of bubbles. Even with homogeneous electric fields these float in the mean but fluctuate randomly within the swarm due to mutual interactions.
In the present case the cylindrical shape of the container furthermore creates inhomogeneous electric currents and an inhomogeneous force distribution resulting in a macroscopic convection pattern stirring the bubbles and further homogenising the spatial distribution of the bubbles.
Keywords: Magnetohydrodynamics; Bubbles; Flow
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IOP Conference Series: Materials Science and Engineering 228(2017), 012008
DOI: 10.1088/1757-899X/228/1/012008
Cited 1 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-26993
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