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dc.contributor.authorDurá Galiana, FJen
dc.contributor.authorWheeler, APSen
dc.contributor.authorOng, Jen
dc.contributor.authorVentura, CADMen
dc.date.accessioned2017-08-23T09:14:56Z
dc.date.available2017-08-23T09:14:56Z
dc.date.issued2017-03en
dc.identifier.issn1742-6588
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/266744
dc.description.abstractThis paper describes a number of recent investigations into the effect of dense gas dynamics on ORC transonic turbine performance. We describe a combination of experimental, analytical and computational studies which are used to determine how, in-particular, trailing-edge loss changes with choice of working fluid. A Ludwieg tube transient wind-tunnel is used to simulate a supersonic base flow which mimics an ORC turbine vane trailing-edge flow. Experimental measurements of wake profiles and trailing-edge base pressure with different working fluids are used to validate high-order CFD simulations. In order to capture the correct mixing in the base region, Large-Eddy Simulations (LES) are performed and verified against the experimental data by comparing the LES with different spatial and temporal resolutions. RANS and Detached-Eddy Simulation (DES) are also compared with experimental data. The effect of different modelling methods and working fluid on mixed-out loss is then determined. Current results point at LES predicting the closest agreement with experimental results, and dense gas effects are consistently predicted to increase loss.
dc.description.sponsorshipProject supported by the EPSRC (EP/J006394/1, EP/L027437/1) and GE Global Research.
dc.language.isoenen
dc.publisherInstitute of Physics (IoP)
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.titleThe effect of dense gas dynamics on loss in ORC transonic turbinesen
dc.typeArticle
prism.number012021en
prism.publicationDate2017en
prism.publicationNameJournal of Physics : Conference Seriesen
prism.volume821en
dc.identifier.doi10.17863/CAM.12815
dcterms.dateAccepted2016-12-27en
rioxxterms.versionofrecord10.1088/1742-6596/821/1/012021en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/en
rioxxterms.licenseref.startdate2017-03en
dc.identifier.eissn1742-6596
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idEPSRC (EP/L027437/1)
cam.issuedOnline2017-04-06en


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Attribution 4.0 International
Except where otherwise noted, this item's licence is described as Attribution 4.0 International