Body-force and mean-line models for the generation of axial compressor sub-idle characteristics

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dc.contributor.authorRighi, Mauro
dc.contributor.authorFerrer-Vidal, Espana-Heredia Luis
dc.contributor.authorPachidis, Vassilios
dc.date.accessioned2020-07-09T13:56:53Z
dc.date.available2020-07-09T13:56:53Z
dc.date.issued2020-07-07
dc.description.abstractThis paper describes the application of low-order models to the prediction of the steady performance of axial compressors at sub-idle conditions. An Euler body-force method employing sub-idle performance correlations is developed and presented alongside a mean-line approach employing the same set of correlations. The low-order tools are used to generate the characteristic lines of the compressor in the locked-rotor and zero-torque windmilling conditions. The results are compared against steady-state operating points from three-dimensional (3D) Reynolds-averaged Navier–Stokes (RANS) computational fluid dynamics (CFD) simulations. The accuracy of the low-order tools in reproducing the results from high-fidelity CFD is analysed, and the trade-off with the computational cost of each method is discussed. The low-order tools presented are shown to offer a fast alternative to traditional CFD which can be used to predict the performance in sub-idle conditions of a new compressor design during early development stagesen_UK
dc.identifier.citationRighi M, Ferrer-Vidal LE, Pachidis V. (2020) Body-force and mean-line models for the generation of axial compressor sub-idle characteristics. The Aeronautical Journal, Volume 124, Issue 1281, November 2020, pp. 1683-1701en_UK
dc.identifier.issn0001-9240
dc.identifier.urihttps://doi.org/10.1017/aer.2020.58
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15544
dc.language.isoenen_UK
dc.publisherCambridge University Pressen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectCFDen_UK
dc.subjectMean-line codeen_UK
dc.subjectThrough-flow codeen_UK
dc.subjectSub-idle performanceen_UK
dc.subjectAxial compressoren_UK
dc.titleBody-force and mean-line models for the generation of axial compressor sub-idle characteristicsen_UK
dc.typeArticleen_UK

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