Leidenfrost Dynamics: Supplemental Video 2
Abstract
A supplemental video from the 2013 review by David Quéré, "Leidenfrost Dynamics," from the Annual Review of Fluid Mechanics.
Hot steel ball (diameter of 15 mm) magnetically maintained in FC-72, a fluorinated liquid boiling at 56°C. For a ball temperature larger than the Leidenfrost temperature TL (130°C for this system), a film of vapor forms (inverse Leidenfrost phenomenon). This film drains upwards, generating ripples and bubbles at the upper pole. After 30 s, the ball temperature reaches TL, which produces an explosive release of bubbles. Credits: Ivan Vakarelski and Siggi Thoroddsen.
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