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dc.contributor.authorJackson, Adam Jen
dc.contributor.authorWheeler, Andrew PSen
dc.contributor.authorAinsworth, Roger Wen
dc.date.accessioned2015-11-03T16:50:08Z
dc.date.available2015-11-03T16:50:08Z
dc.date.issued2015-10-30en
dc.identifier.citationInternational Journal of Heat and Fluid Flow 2015, 56: 335-343. doi: 10.1016/j.ijheatfluidflow.2015.09.001en
dc.identifier.issn0142-727X
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/252499
dc.description.abstractThis paper describes an experimental and computational investigation into the influence of tip clearance on the blade tip heat load of a high-pressure (HP) turbine stage. Experiments were performed in the Oxford Rotor facility which is a 1½ stage, shroudless, transonic, high pressure turbine. The experiments were conducted at an engine representative Mach number and Reynolds number. Rotating frame instrumentation was used to capture both aerodynamic and heat flux data within the rotor blade row. Two rotor blade tip clearances were tested (1.5% and 1.0% of blade span). The experiments were compared with computational fluid dynamics (CFD) predictions made using a steady Reynolds-averaged Navier–Stokes (RANS) solver. The experiments and computational predictions were in good agreement. The blade tip heat transfer was observed to increase with reduced tip gap in both the CFD and the experiment. The augmentation of tip heat load at smaller clearances was found to be due to the ingestion of high relative total temperature fluid near the casing, generated through casing shear.
dc.description.sponsorshipThis work was sponsored by Rolls-Royce plc and the Isle of Man Government.
dc.languageEnglishen
dc.language.isoenen
dc.publisherElsevier
dc.subjectTip leakage flowen
dc.subjectHeat transferen
dc.subjectTransonic turbineen
dc.titleAn experimental and computational study of tip clearance effects on a transonic turbine stageen
dc.typeArticle
dc.description.versionThis is the author accepted manuscript. The final version is available from Elsevier via http://dx.doi.org/10.1016/j.ijheatfluidflow.2015.09.001en
prism.endingPage343
prism.publicationDate2015en
prism.publicationNameInternational Journal of Heat and Fluid Flowen
prism.startingPage335
prism.volume56en
rioxxterms.versionofrecord10.1016/j.ijheatfluidflow.2015.09.001en
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2015-10-30en
dc.identifier.eissn1879-2278
rioxxterms.typeJournal Article/Reviewen
rioxxterms.freetoread.startdate2016-10-30


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