Evaluation of extreme value predictions for unsteady flow distortion of aero-engine intakes

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dc.contributor.authorMigliorini, Matteo
dc.contributor.authorZachos, Pavlos K.
dc.contributor.authorMacManus, David G.
dc.date.accessioned2024-02-21T13:03:09Z
dc.date.available2024-02-21T13:03:09Z
dc.date.issued2024-02-13
dc.description.abstractUnsteady flow distortion is of interest for the development air-breathing propulsion systems. These stochastic fluctuations can generate incompatibilities between intakes and aero-engines. Observing the extreme flow distortion events during experimental testing is not guaranteed and statistical models such as Extreme Value Theory (EVT) can be used to estimate the occurrence and magnitude of the fluctuations. However, the current industry standard does not provide guidance on how to apply these methods to obtain useful predictions. This work proposes a systematic process to assess the required number of observations for obtaining statistical convergence of the EVT predictions. This is achieved through shuffling of the data samples and relies on the availability of a sufficiently large initial dataset. This can be adopted by gas turbine engineers to evaluate the data recording requirements and to potentially reduce costs associated with experimental programs.en_UK
dc.description.sponsorshipUKRI [grant reference no. 2202953]en_UK
dc.identifier.citationMigliorini M, Zachos PK, MacManus DG. (2024) Evaluation of extreme value predictions for unsteady flow distortion of aero-engine intakes. Journal of Engineering for Gas Turbines and Power, Volume 146, Issue 9, September 2024. Paper number GTP-23-1520en_UK
dc.identifier.eissn1528-8919
dc.identifier.issn0742-4795
dc.identifier.urihttps://doi.org/10.1115/1.4064728
dc.identifier.urihttps://asmedigitalcollection.asme.org/gasturbinespower/article-abstract/146/9/094501/1197094/Evaluation-of-Extreme-Value-Predictions-for?redirectedFrom=fulltext
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/20845
dc.language.isoenen_UK
dc.publisherAmerican Society of Mechanical Engineers (ASME)en_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectAircraft enginesen_UK
dc.subjectunsteady flowen_UK
dc.subjectFluctuations (Physics)en_UK
dc.subjectEngineering standardsen_UK
dc.subjectEngineersen_UK
dc.subjectFlow (Dynamics)en_UK
dc.subjectGas turbinesen_UK
dc.subjectPropulsion Systemsen_UK
dc.subjectTestingen_UK
dc.titleEvaluation of extreme value predictions for unsteady flow distortion of aero-engine intakesen_UK
dc.typeArticleen_UK
dcterms.dateAccepted2024-01-29

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