Static and dynamic behavior of water droplets on the heterogeneous platinum surface

dc.contributor.authorKwon, Tae Woo
dc.contributor.authorAmbrosia, Matthew Stanley
dc.contributor.authorHa, Man Yeong
dc.date.accessioned2015-04-23T07:18:46Z
dc.date.available2015-04-23T07:18:46Z
dc.date.issued2014
dc.description.abstractPaper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.en_ZA
dc.description.abstractIn this study, the static and dynamic behaviors of water droplets on heterogeneous surfaces were investigated using molecular dynamics simulations. The surface consisted of the flat plate and pillar structures. The pillar was designed with two heights and three characteristic energies. The simulations were conducted in two steps. In the first step, the water droplet reached the static equilibrium state as a sphere or hemisphere. The static behaviors of the water droplets were in the Wenzel or the Cassie-Baxter state. In the next step, the five forces applied to the water droplets. The dynamic behaviors of the water droplets could be classified into three groups. And the effects of the pillar characteristic energy and the magnitude of the applied force on the behaviors were discussed using the contact angle hysteresis. It was found that a weak pillar characteristic energy had a larger effect on the short pillar height while a stronger pillar characteristic energy had a greater effect on the high pillar height.en_ZA
dc.description.librariandc2015en_ZA
dc.format.extent9 pagesen_ZA
dc.format.mediumPDFen_ZA
dc.identifier.citationKwon, TW, Ambrosia, MS & Ha, MY 2014, 'Static and dynamic behavior of water droplets on the heterogeneous platinum surface', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014.en_ZA
dc.identifier.isbn97817759206873
dc.identifier.urihttp://hdl.handle.net/2263/44498
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_ZA
dc.rights© 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.en_ZA
dc.subjectWater dropletsen_ZA
dc.subjectHeterogeneous surfacesen_ZA
dc.subjectMolecular dynamics simulationsen_ZA
dc.subjectCassie-Baxter stateen_ZA
dc.subjectPillar characteristic energyen_ZA
dc.titleStatic and dynamic behavior of water droplets on the heterogeneous platinum surfaceen_ZA
dc.typePresentationen_ZA

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