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Modal decomposition of the unsteady non-reactive flow field in a swirl-stabilized combustor operated by a Lean Premixed injection system

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Modal decomposition of the unsteady non-reactive flow field in a swirl-stabilized combustor operated by a Lean Premixed injection system

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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 info:eu-repo/grantAgreement/UC//RES FI-2018-3-0033/ es_ES
dc.relation info:eu-repo/grantAgreement/UC//FI-2019-1-0009/ es_ES
dc.relation info:eu-repo/grantAgreement/UPV//PAID-06-18/ es_ES
dc.relation info:eu-repo/grantAgreement/UPV//PAID-01-18//Programa de Ayudas de Investigación y Desarrollo (PAID-01-18)/ es_ES
dc.relation 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.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.rights.accessRights Embargado es_ES
dc.date.embargoEndDate 2023-03-01 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
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