Numerical study of molten and semi-molten ceramic impingement by using coupled Eulerian and Lagrangian method

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dc.contributor.authorZhu, Zihang
dc.contributor.authorKamnis, S.
dc.contributor.authorGu, Sai
dc.date.accessioned2016-04-25T14:40:51Z
dc.date.available2016-04-25T14:40:51Z
dc.date.issued2015-03-06
dc.description.abstractLarge temperature gradients are present within ceramic powder particles during plasma spray deposition due to their low thermal conductivity. The particles often impinge at the substrate in a semi-molten form which in turn substantially affects the final characteristics of the coating being formed. This study is dedicated to a novel modeling approach of a coupled Eulerian and Lagrangian (CEL) method for both fully molten and semi-molten droplet impingement processes. The simulation provides an insight to the deformation mechanism of the solid core YSZ and illustrates the freezing-induced break-up and spreading at the splat periphery. A 30 μm fully molten YSZ particle and an 80 μm semi-molten YSZ particle with different core sizes and initial velocity ranging from 100 to 240 m/s were examined. The flattened degree for both cases were obtained and compared with experimental and analytical data.en_UK
dc.identifier.citationZihang Zhu, Spyros Kamnis, Sai Gu, Numerical study of molten and semi-molten ceramic impingement by using coupled Eulerian and Lagrangian method, Acta Materialia, Volume 90, 15 May 2015, Pages 77-87en_UK
dc.identifier.issn1359-6454
dc.identifier.urihttp://dx.doi.org/10.1016/j.actamat.2015.02.010
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/9842
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsUnder a Creative Commons license Attribution 4.0 International (CC BY 4.0) You are free to: Share — copy and redistribute the material in any medium or format, Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.en_UK
dc.subjectThermal sprayen_UK
dc.subjectSemi-molten particlesen_UK
dc.subjectCoupled Eulerian and Lagrangian methoden_UK
dc.subjectFlattening degreeen_UK
dc.titleNumerical study of molten and semi-molten ceramic impingement by using coupled Eulerian and Lagrangian methoden_UK
dc.typeArticleen_UK

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