Using Lorentz forces to control the distribution of bubbles in a vertical tube filled with liquid metal

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Heitkam, S.; Tschisgale, S.; Krull, B.; Wetzel, T.; Baake, E.; Fröhlich, J.: Using Lorentz forces to control the distribution of bubbles in a vertical tube filled with liquid metal. In: IOP Conference Series: Materials Science and Engineering 228 (2017), Nr. 1, No. 12008. DOI: https://doi.org/10.1088/1757-899X/228/1/012008

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Sum total of downloads: 58




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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.
License of this version: CC BY 3.0
Document Type: article
Publishing status: publishedVersion
Issue Date: 2017
Appears in Collections:Fakultät für Elektrotechnik und Informatik

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1 image of flag of Germany Germany 57 98.28%
2 image of flag of Poland Poland 1 1.72%

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