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Reshaping and Capturing Leidenfrost drops with a magnet

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 نشر من قبل Keyvan Piroird
 تاريخ النشر 2012
  مجال البحث فيزياء
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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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