Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/117943
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Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Long, S. | - |
dc.contributor.author | Lau, T. | - |
dc.contributor.author | Chinnici, A. | - |
dc.contributor.author | Tian, Z. | - |
dc.contributor.author | Dally, B. | - |
dc.contributor.author | Nathan, G. | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Physics of Fluids, 2018; 30(12):1-15 | - |
dc.identifier.issn | 1070-6631 | - |
dc.identifier.issn | 1089-7666 | - |
dc.identifier.uri | http://hdl.handle.net/2440/117943 | - |
dc.description.abstract | We 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. | - |
dc.description.statementofresponsibility | Shen Long, Timothy C. W. Lau, Alfonso Chinnici, Zhao Feng Tian, Bassam B. Dally, and Graham J. Nathan | - |
dc.language.iso | en | - |
dc.publisher | AIP Publishing | - |
dc.rights | © 2018 Author(s). | - |
dc.source.uri | http://dx.doi.org/10.1063/1.5063500 | - |
dc.title | The influence of aspect ratio on the iso-thermal flow characteristics of multiple confined jets | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1063/1.5063500 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/LP110200060 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Long, S. [0000-0001-5622-3535] | - |
dc.identifier.orcid | Lau, T. [0000-0003-1851-706X] | - |
dc.identifier.orcid | Chinnici, A. [0000-0002-0743-3904] | - |
dc.identifier.orcid | Tian, Z. [0000-0001-9847-6004] | - |
dc.identifier.orcid | Nathan, G. [0000-0002-6922-848X] | - |
Appears in Collections: | Aurora harvest 8 Mechanical Engineering publications |
Files in This Item:
File | Description | Size | Format | |
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hdl_117943.pdf | Published version | 2.78 MB | Adobe PDF | View/Open |
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