Please use this identifier to cite or link to this item:
Scopus Web of Science® Altmetric
Full metadata record
DC FieldValueLanguage
dc.contributor.authorLong, S.en
dc.contributor.authorLau, T.en
dc.contributor.authorChinnici, A.en
dc.contributor.authorTian, Z.en
dc.contributor.authorDally, B.en
dc.contributor.authorNathan, G.en
dc.identifier.citationPhysics of Fluids, 2018; 30(12):1-15en
dc.description.abstractWe report a systematic study of the interaction between four rotationally symmetric jets within a cylindrical chamber obtained with particle image velocimetry, under conditions relevant to a wide range of practical applications including the hybrid solar receiver combustor. The geometry consists of a cylindrical cavity with four inlet jets (representing four burners), which are configured in an annular arrangement and aligned at an inclination angle (αj) to the axis with a tangential component (azimuthal angle θj) to generate a swirl in the chamber. The configurations of αj = 25° were assessed with two azimuthal angles θj = 5° and 15°, a range of chamber aspect ratios (Lc/Dc), and a fixed nozzle Reynolds number of ReD = 10 500. The experimental results reveal a significant dependence of the mean and turbulent flow-fields on the aspect ratio Lc/Dc for the values of αj and θj considered here. Three different flow regimes and their controlling parameters were identified within the range 1 ≤ Lc/Dc ≤ 3. The dependence of the flow characteristics on the chamber length Lc was weak within 1.5 < Lc/Dc ≤ 3, but significant for 1 ≤ Lc/Dc ≤ 1.5. It was also found that the value of Lc/Dc has a controlling influence on the position and strength of large-scale recirculation regions, together with the extent of flow unsteadiness, although this influence is reduced as θj is increased.en
dc.description.statementofresponsibilityShen Long, Timothy C. W. Lau, Alfonso Chinnici, Zhao Feng Tian, Bassam B. Dally, and Graham J. Nathanen
dc.publisherAIP Publishingen
dc.rights© 2018 Author(s).en
dc.titleThe influence of aspect ratio on the iso-thermal flow characteristics of multiple confined jetsen
dc.typeJournal articleen
pubs.library.collectionMechanical Engineering publicationsen
dc.identifier.orcidLong, S. [0000-0001-5622-3535]en
dc.identifier.orcidLau, T. [0000-0003-1851-706X]en
dc.identifier.orcidChinnici, A. [0000-0002-0743-3904]en
dc.identifier.orcidTian, Z. [0000-0001-9847-6004]en
dc.identifier.orcidNathan, G. [0000-0002-6922-848X]en
Appears in Collections:Mechanical Engineering publications

Files in This Item:
File Description SizeFormat 
hdl_117943.pdfPublished version2.78 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.