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dc.contributor.authorSalazar Hernández, Agustín ORCID
dc.contributor.authorColom Serra, Mateu ORCID
dc.contributor.authorMendioroz Astigarraga, María Aránzazu ORCID
dc.date.accessioned2023-11-15T17:03:59Z
dc.date.available2023-11-15T17:03:59Z
dc.date.issued2021-05-24
dc.identifier.citationInternational Journal of Heat and Mass Transfer 176 : (2021) // Article ID 121447es_ES
dc.identifier.issn0017-9310
dc.identifier.urihttp://hdl.handle.net/10810/63032
dc.description.abstractWe propose a method to measure the thermal diffusivity of (an)isotropic samples moving at constant speed using laser-spot thermography with continuous illumination. The method does not require previous knowledge of the principal directions and can be applied whichever their orientation with respect to the direction of motion. We demonstrate analytically that any radial temperature profile crossing the center of the laser spot fulfills a linear relation with the distance to the laser spot, whose slope depends on the thermal diffusivity, on the sample speed and on the angle of the profile with respect the sample motion. A multi-linear fitting of the temperature profiles at several angles provides a reliable method to obtain the thermal diffusivity. Experiments performed on reference samples, both isotropic and anisotropic, con- firm the validity of the method to provide accurate and precise thermal diffusivity values and to identify the thermal principal directions.es_ES
dc.description.sponsorshipThis work has been supported by Ministerio de Ciencia e Innovación (PID2019-104347RB-I00, AEI/FEDER, UE), by Gobierno Vasco (PIBA 2018-15) and by Universidad del País Vasco UPV/EHU (GIU19/058).es_ES
dc.language.isoenges_ES
dc.publisherElsevieres_ES
dc.relationinfo:eu-repo/grantAgreement/MCIN/PID2019-104347RB-I00es_ES
dc.rightsinfo:eu-repo/semantics/openAccesses_ES
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectthermal diffusivityes_ES
dc.subjectflying-spot thermographyes_ES
dc.subjectlaer-spot thermographyes_ES
dc.subjectlinear relationses_ES
dc.subjectmoving sampleses_ES
dc.titleDetermining the thermal diffusivity and the principal directions on anisotropic moving samples with laser-spot thermographyes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.holder© 2021 Elsevier under CC BY-NC-ND license (http://creativecommons.org/licenses/by- nc-nd/4.0/)es_ES
dc.relation.publisherversionhttps://www.sciencedirect.com/science/article/pii/S0017931021005500es_ES
dc.identifier.doi10.1016/j.ijheatmasstransfer.2021.121447
dc.departamentoesFísica aplicada Ies_ES
dc.departamentoeuFisika aplikatua Ies_ES


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© 2021 Elsevier under CC BY-NC-ND license (http://creativecommons.org/licenses/by- nc-nd/4.0/)
Except where otherwise noted, this item's license is described as © 2021 Elsevier under CC BY-NC-ND license (http://creativecommons.org/licenses/by- nc-nd/4.0/)