hal.structure.identifier	Laboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.author	WÜRGER, Alois
dc.date.issued	2011-10-13
dc.identifier.issn	0031-9007
dc.description.abstractEn	We show that thermal creep is at the origin of the recently discovered Leidenfrost ratchet, where liquid droplets float on a vapor layer along a heated saw-tooth surface and accelerate to velocities of up to 40 cm/s. As the active element, the asymmetric temperature profile at each ratchet summit rectifies the vapor flow in the boundary layer. This mechanism works at low Reynolds number and provides a novel tool for controlling gas flow at nanostructured surfaces.
dc.language.iso	en
dc.publisher	American Physical Society
dc.title.en	Leidenfrost gas ratchets driven by thermal creep
dc.type	Article de revue
dc.identifier.doi	10.1103/PhysRevLett.107.164502
dc.subject.hal	Physique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.hal	Physique [physics]
bordeaux.journal	Physical Review Letters
bordeaux.page	164502 (4)
bordeaux.volume	107
bordeaux.peerReviewed	oui
hal.identifier	hal-00632232
hal.version	1
hal.popular	non
hal.audience	Internationale
hal.origin.link	https://hal.archives-ouvertes.fr//hal-00632232v1
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Leidenfrost gas ratchets driven by thermal creep