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arXiv · 1210.5718

Reshaping and Capturing Leidenfrost drops with a magnet

Keyvan Piroird·Baptiste Darbois Texier·Christophe Clanet·David Quéré
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Abstract

Liquid oxygen, which is paramagnetic, also undergoes Leidenfrost effect at room temperature. In this article, we first study the deformation of oxygen drops in a magnetic field and show that it can be described via an effective capillary length, which includes the magnetic force. In a second part, we describe how these ultra-mobile drops passing above a magnet significantly slow down and can even be trapped. The critical velocity below which a drop is captured is determined from the deformation induced by the field.

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Keyvan Piroird, Baptiste Darbois Texier, Christophe Clanet, David Quéré. 2012-10-21. Reshaping and Capturing Leidenfrost drops with a magnet. https://doi.org/10.1063/1.4796133

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