Discretized Miller approach to assess effects on boundary layer ingestion induced distortion

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dc.contributor.authorValencia, Esteban
dc.contributor.authorHidalgo, Víctor
dc.contributor.authorNalianda, Devaiah
dc.contributor.authorLaskaridis, Panagiotis
dc.contributor.authorSingh, R.
dc.date.accessioned2017-01-16T09:53:40Z
dc.date.available2017-01-16T09:53:40Z
dc.date.issued2016-12-21
dc.description.abstractThe performance of propulsion configurations with boundary layer ingestion (BLI) is affected to a large extent by the level of distortion in the inlet flow field. Through flow methods and parallel compressor have been used in the past to calculate the effects of this aerodynamic integration issue on the fan performance; however high-fidelity through flow methods are computationally expensive, which limits their use at preliminary design stage. On the other hand, parallel compressor has been developed to assess only circumferential distortion. This paper introduces a discretized semi-empirical performance method, which uses empirical correlations for blade and performance calculations. This tool discretizes the inlet region in radial and circumferential directions enabling the assessment of deterioration in fan performance caused by the combined effect of both distortion patterns. This paper initially studies the accuracy and suitability of the semi-empirical discretized method by comparing its predictions with CFD and experimental data for a baseline case working under distorted and undistorted conditions. Then a test case is examined, which corresponds to the propulsor fan of a distributed propulsion system with BLI. The results obtained from the validation study show a good agreement with the experimental and CFD results under design point conditions.en_UK
dc.identifier.citationValencia E, Hidalgo V, Nalianda D, et al., (2017) Discretized Miller approach to assess effects on boundary layer ingestion induced distortion. Chinese Journal of Aeronautics, Volume 30, Issue 1, February 2017, pp. 235-248en_UK
dc.identifier.cris16263692
dc.identifier.issn1000-9361
dc.identifier.urihttp://dx.doi.org/10.1016/j.cja.2016.12.005
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/11274
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectBLIen_UK
dc.subjectCorrelationsen_UK
dc.subjectDistortionen_UK
dc.subjectEmbedded propulsorsen_UK
dc.subjectEmpiricalen_UK
dc.subjectMean-line analysisen_UK
dc.subjectTurbomachineryen_UK
dc.titleDiscretized Miller approach to assess effects on boundary layer ingestion induced distortionen_UK
dc.typeArticleen_UK

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