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arXiv · 1212.2105

Velocity measurements in the liquid metal flow driven by a two-phase inductor

A. Pedcenko·A. Bojarevičs·J. Priede·G. Gerbeth·R. Hermann
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Abstract

We present the results of velocity measurements obtained by ultrasonic Doppler velocimetry and local potential probes in the flow of GaInSn eutectic melt driven by a two-phase inductor in a cylindrical container. This type of flow is expected in a recent modification to the floating zone technique for the growth of small-diameter single intermetallic compound crystals. We show that the flow structure can be changed from the typical two toroidal vortices to a single vortex by increasing the phase shift between the currents in the two coils from 0 to 90 degrees. The latter configuration is thought to be favourable for the growth of single crystals. The flow is also computed numerically and a reasonable agreement with the experimental results is found. The obtained results may be useful for the design of combined two-phase electromagnetic stirrers and induction heaters for metal or semiconductor melts.

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A. Pedcenko, A. Bojarevičs, J. Priede, G. Gerbeth, R. Hermann. 2013-06-14. Velocity measurements in the liquid metal flow driven by a two-phase inductor. https://doi.org/10.1007/s00348-013-1558-7

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