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dc.contributor.authorGrøvdal, Fredrik
dc.contributor.authorSannan, Sigurd
dc.contributor.authorChen, Jyh-Yuan
dc.contributor.authorLøvås, Terese
dc.date.accessioned2020-01-24T12:50:13Z
dc.date.available2020-01-24T12:50:13Z
dc.date.created2019-05-06T15:44:24Z
dc.date.issued2019
dc.identifier.issn0010-2202
dc.identifier.urihttp://hdl.handle.net/11250/2637845
dc.description.abstractA novel model, the hybrid RANS-LEM3D model, is applied to a lifted turbulent N 2 diluted hydrogen jet flame in a vitiated co-flow of hot products from lean H 2 /air combustion. In the present modeling approach, mean-flow information from RANS provides model input to LEM3D, which returns the scalar statistics needed for more accurate mixing and reaction calculations. The dependence of lift-off heights and flame structure on iteration schemes and model parameters are investigated in detail, along with other characteristics not available from RANS alone, such as the instantaneous and detailed species profiles and small-scale mixing. Two different iteration procedures, a breadth-first search (BFS) and a checkerboard algorithm, as well as parameters of the model framework are examined and tested for sensitivity toward the results. The impact of heat release and thermal expansion is demonstrated and evaluated in detail. It is shown for the current application that LEM3D provides additional details compared to the RANS simulation with a low computational cost in comparison with a conventional DNS simulation. © 2019, © 2019 Taylor & Francis Group, LLC.nb_NO
dc.language.isoengnb_NO
dc.publisherTaylor & Francisnb_NO
dc.titleA Parametric Study of LEM3D Based on Comparison with a Turbulent Lifted Hydrogen Jet Flame in a Vitiated Co-Flownb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.journalCombustion Science and Technologynb_NO
dc.identifier.doi10.1080/00102202.2019.1588261
dc.identifier.cristin1695883
dc.relation.projectNorges forskningsråd: 233722nb_NO
dc.description.localcodeLocked until 11.04.2020 due to copyright restrictions. This is an [Accepted Manuscript] of an article published by Taylor & Francis, available at http://wwww.tandfonline.com/[Article DOI: 10.1080/00102202.2019.1588261].nb_NO
cristin.unitcode194,64,25,0
cristin.unitnameInstitutt for energi- og prosessteknikk
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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