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On the relation between the external structure and the internal characteristics in the near-nozzle field of diesel sprays

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On the relation between the external structure and the internal characteristics in the near-nozzle field of diesel sprays

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dc.contributor.author Benajes, Jesús es_ES
dc.contributor.author Salvador, Francisco Javier es_ES
dc.contributor.author Carreres, M. es_ES
dc.contributor.author Jaramillo-Císcar, David es_ES
dc.date.accessioned 2018-06-15T04:22:39Z
dc.date.available 2018-06-15T04:22:39Z
dc.date.issued 2017 es_ES
dc.identifier.issn 0954-4070 es_ES
dc.identifier.uri http://hdl.handle.net/10251/104126
dc.description.abstract [EN] In this paper, a high-resolution visualization technique has been used in combination with an extensively validated 0D model in order to relate the external structure of a diesel spray to the internal properties in the vicinity of the nozzle. For this purpose, three single-hole convergent nozzles with different diameters have been tested for several pressure conditions. The analysis of the obtained images shows that the spray width significantly changes along the very first millimeters of the spray. From the high resolution images captured, two parameters have been evaluated. The first one is the external non-perturbed length, where droplet detachment has not been observed. The second one is a transitional length, defined as the axial position where the spray width increases linearly after a transient behavior, making it possible to establish a spray cone angle definition. Furthermore, the internal liquid core length has been estimated for these nozzles using an extensively validated zero-dimensional model. The intact liquid core length has proved to be correlated with both the transitional length and the non-perturbed length with a very high degree of reliability. In the case of the transitional length, a quadratic correlation has been observed, whereas a linear relationship has been confirmed between the intact core length and the non-perturbed length. The results presented here may help to shed light on better understanding of such a complex process as atomization. es_ES
dc.description.sponsorship The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was supported by the Ministerio de Economia y Competitividad, Spanish Government, under the project 'Comprension de la influencia de combustibles no convencionales en el proceso de injeccion y combustion tipo diesel' (project number TRA2012-36932) The PhD studies of D. Jaramillo have been funded by "Conselleria d'Educacio'Cultura i Esports'' of "Generalitat Valenciana'', Spain, by means of ''Programa Vali+ d per a personal investigador en formacio''. Reference ACIF/2015/040.
dc.language Inglés es_ES
dc.publisher SAGE Publications es_ES
dc.relation MINECO/TRA2012-36932 es_ES
dc.relation GENERALITAT VALENCIANA/ACIF/2015/040 es_ES
dc.relation.ispartof Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Diesel spray es_ES
dc.subject Atomization es_ES
dc.subject Near-nozzle es_ES
dc.subject High-pressure injection es_ES
dc.subject Break-up length es_ES
dc.subject Intact liquid core es_ES
dc.subject.classification INGENIERIA AEROESPACIAL es_ES
dc.subject.classification MAQUINAS Y MOTORES TERMICOS es_ES
dc.title On the relation between the external structure and the internal characteristics in the near-nozzle field of diesel sprays es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1177/0954407016639464 es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Máquinas y Motores Térmicos - Departament de Màquines i Motors Tèrmics es_ES
dc.description.bibliographicCitation Benajes, J.; Salvador, FJ.; Carreres, M.; Jaramillo-Císcar, D. (2017). On the relation between the external structure and the internal characteristics in the near-nozzle field of diesel sprays. Proceedings of the Institution of Mechanical Engineers Part D Journal of Automobile Engineering. 231(3):360-371. doi:10.1177/0954407016639464 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1177/0954407016639464 es_ES
dc.description.upvformatpinicio 360 es_ES
dc.description.upvformatpfin 371 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 231 es_ES
dc.description.issue 3 es_ES
dc.relation.pasarela S\325028 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Ministerio de Economía, Industria y Competitividad es_ES
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