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dc.contributor.author | Salvador, Francisco Javier | es_ES |
dc.contributor.author | Carreres, Marcos | es_ES |
dc.contributor.author | GARCIA TISCAR, JORGE | es_ES |
dc.contributor.author | Belmar-Gil, M. | es_ES |
dc.date.accessioned | 2022-05-20T18:06:10Z | |
dc.date.available | 2022-05-20T18:06:10Z | |
dc.date.issued | 2021-05 | es_ES |
dc.identifier.issn | 1270-9638 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/182764 | |
dc.description.abstract | [EN] This work is focused on the numerical study of low-order coherent structures of a high-swirled laboratory-scaled combustor operated by a Lean Premixed (LP) injection system in non-reacting conditions through different flow modal decomposition techniques. This will provide valuable insight into the time-spatial modal structure detecting coherent spatial patterns. Experiments suggest the appearance of a self-excited hydrodynamic instability characterized by a single dominant frequency. On the one hand, the dominant pulsating energy components associated with the Precessing Vortex Core (PVC) are identified through the application of a Proper Orthogonal Decomposition (POD) to the instantaneous velocity field. On the other hand, Dynamic Mode Decomposition (DMD) is proven to effectively highlight the relation between the frequency of the most dominant unsteady vortex structures and their spatial distribution within the combustor. Since DMD analysis generates a global frequency spectrum in which each mode corresponds to a specific discrete frequency, its application has been demonstrated to be more efficient than POD when dealing with temporally coherent problems. In this way, the DMD technique has proved to be a robust and systematic method that can give accurate and consistent interpretations of the periodic physics underlying hydrodynamic instabilities in the combustor studied in the present investigation. | es_ES |
dc.description.sponsorship | This work was partly sponsored by the program "Ayuda a Primeros Proyectos de Investigacion (PAID-06-18), Vicerrectorado de Investigacion, Innovacion y Transferencia de la Universitat Politecnica de Valencia (UPV), Spain". We thankfully acknowledge the computer resources at Altamira Supercomputer and the technical support provided by Universidad de Cantabria (RES FI-2018-3-0033 and FI-2019-1-0009) in the frame of the Spanish Supercomputing Network. On the other hand, the support given to Mr. Mario Belmar by Universitat Politecnica de Valencia through the "FPI-Subprograma 2" grant within the "Programa de Apoyo para la Investigacion y Desarrollo (PAID-01-18)" is gratefully acknowledged. | es_ES |
dc.language | Inglés | es_ES |
dc.publisher | Elsevier | es_ES |
dc.relation.ispartof | Aerospace Science and Technology | es_ES |
dc.rights | Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) | es_ES |
dc.subject | Swirling flow | es_ES |
dc.subject | LES | es_ES |
dc.subject | PVC | es_ES |
dc.subject | POD | es_ES |
dc.subject | DMD | es_ES |
dc.subject.classification | MAQUINAS Y MOTORES TERMICOS | es_ES |
dc.subject.classification | INGENIERIA AEROESPACIAL | es_ES |
dc.title | Modal decomposition of the unsteady non-reactive flow field in a swirl-stabilized combustor operated by a Lean Premixed injection system | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.ast.2021.106622 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UC//RES FI-2018-3-0033/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UC//FI-2019-1-0009/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UPV//PAID-06-18/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UPV//PAID-01-18//Programa de Ayudas de Investigación y Desarrollo (PAID-01-18)/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/UPV-VIN//SP20180178//Modelado computacional de los fenómenos de atomización y evaporación en quemadores LDI de turbinas de gas/ | 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 | Salvador, FJ.; Carreres, M.; Garcia Tiscar, J.; Belmar-Gil, M. (2021). Modal decomposition of the unsteady non-reactive flow field in a swirl-stabilized combustor operated by a Lean Premixed injection system. Aerospace Science and Technology. 112:1-13. https://doi.org/10.1016/j.ast.2021.106622 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.ast.2021.106622 | es_ES |
dc.description.upvformatpinicio | 1 | es_ES |
dc.description.upvformatpfin | 13 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 112 | es_ES |
dc.relation.pasarela | S\429658 | es_ES |
dc.contributor.funder | Universidad de Cantabria | es_ES |
dc.contributor.funder | UNIVERSIDAD POLITECNICA DE VALENCIA | es_ES |
dc.contributor.funder | Universitat Politècnica de València | es_ES |
dc.subject.ods | 07.- Asegurar el acceso a energías asequibles, fiables, sostenibles y modernas para todos | es_ES |
dc.subject.ods | 09.- Desarrollar infraestructuras resilientes, promover la industrialización inclusiva y sostenible, y fomentar la innovación | es_ES |
dc.subject.ods | 11.- Conseguir que las ciudades y los asentamientos humanos sean inclusivos, seguros, resilientes y sostenibles | es_ES |
dc.subject.ods | 12.- Garantizar las pautas de consumo y de producción sostenibles | es_ES |
dc.subject.ods | 13.- Tomar medidas urgentes para combatir el cambio climático y sus efectos | es_ES |
dc.subject.ods | 14.- Conservar y utilizar de forma sostenible los océanos, mares y recursos marinos para lograr el desarrollo sostenible | es_ES |
dc.subject.ods | 15.- Proteger, restaurar y promover la utilización sostenible de los ecosistemas terrestres, gestionar de manera sostenible los bosques, combatir la desertificación y detener y revertir la degradación de la tierra, y frenar la pérdida de diversidad biológica | es_ES |
dc.subject.ods | 17.- Fortalecer los medios de ejecución y reavivar la alianza mundial para el desarrollo sostenible | es_ES |