Trapping Leidenfrost drops with crenelations

Guillaume Dupeux; Marie Le Merrer; Christophe Clanet; David Quéré

doi:10.1103/PhysRevLett.107.114503

Trapping Leidenfrost drops with crenelations

Guillaume Dupeux
, Marie Le Merrer
, Christophe Clanet
, David Quéré

Research output: Contribution to journal › Article › peer-review

Abstract

Drops placed on very hot solids levitate on a cushion of their own vapor, as discovered by Leidenfrost. This confers to these drops a remarkable mobility, which makes problematic their control and manipulation. Here we show how crenelated surfaces can be used to increase the friction of Leidenfrost drops by a factor on the order of 100, making them decelerate and be trapped on centimetric distances instead of the usual metric ones. We measure and characterize the friction force as a function of the design of the crenelations.

Original language	English
Article number	114503
Journal	Physical Review Letters
Volume	107
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.107.114503
Publication status	Published - 8 Sept 2011

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10.1103/PhysRevLett.107.114503

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title = "Trapping Leidenfrost drops with crenelations",

abstract = "Drops placed on very hot solids levitate on a cushion of their own vapor, as discovered by Leidenfrost. This confers to these drops a remarkable mobility, which makes problematic their control and manipulation. Here we show how crenelated surfaces can be used to increase the friction of Leidenfrost drops by a factor on the order of 100, making them decelerate and be trapped on centimetric distances instead of the usual metric ones. We measure and characterize the friction force as a function of the design of the crenelations.",

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AU - Clanet, Christophe

AU - Quéré, David

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N2 - Drops placed on very hot solids levitate on a cushion of their own vapor, as discovered by Leidenfrost. This confers to these drops a remarkable mobility, which makes problematic their control and manipulation. Here we show how crenelated surfaces can be used to increase the friction of Leidenfrost drops by a factor on the order of 100, making them decelerate and be trapped on centimetric distances instead of the usual metric ones. We measure and characterize the friction force as a function of the design of the crenelations.

AB - Drops placed on very hot solids levitate on a cushion of their own vapor, as discovered by Leidenfrost. This confers to these drops a remarkable mobility, which makes problematic their control and manipulation. Here we show how crenelated surfaces can be used to increase the friction of Leidenfrost drops by a factor on the order of 100, making them decelerate and be trapped on centimetric distances instead of the usual metric ones. We measure and characterize the friction force as a function of the design of the crenelations.

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JO - Physical Review Letters

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Trapping Leidenfrost drops with crenelations

Abstract

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