Embedded large eddy simulation of transitional flow over NACA0012 aerofoil

dc.contributor.authorLin, Yujing
dc.contributor.authorWang, Jian
dc.contributor.authorSavill, Mark
dc.date.accessioned2020-08-14T13:36:43Z
dc.date.available2020-08-14T13:36:43Z
dc.date.issued2020-07-06
dc.description.abstractAn accurate computation of near-field unsteady turbulent flow around aerofoil is of outstanding importance for aerofoil trailing edge noise source prediction, which is a representative of main contributor to airframe noise and fan noise in modern commercial aircraft. In this study, an embedded large eddy simulation (ELES) is fully implemented in a separation-induced transitional flow over NACA0012 aerofoil at a moderate Reynolds number. It aims to evaluate the performance of the ELES method in aerodynamics simulation for wall-bounded aerospace flow in terms of accuracy, computational cost and complexity of implementation. Some good practice is presented including the special treatments at RANS-LES interface to provide more realistic turbulence generation in LES inflow. A comprehensive validation of the ELES results is performed by comparing with the experimental data and the wall-resolved large eddy simulation results. It is concluded that the ELES method could provide sufficient accuracy in the transitional flow simulations around aerofoil. It is proved to be a promising alternative to the pure LES for industrial flow applications involving wall boundary layer due to its significant computational efficiencyen_UK
dc.identifier.citationLin Y, Wang J, Savill M. (2020) Embedded large eddy simulation of transitional flow over NACA0012 aerofoil. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Volume 235, Issue 2, February 2021, pp.189-204en_UK
dc.identifier.issn0954-4100
dc.identifier.urihttps://doi.org/10.1177/0954410020939797
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/15686
dc.language.isoenen_UK
dc.publisherSageen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectRANS-LES interfaceen_UK
dc.subjectairframe noiseen_UK
dc.subjectcomputational aeroacoustics,en_UK
dc.subjectcomputational aerodynamicsen_UK
dc.subjectEmbedded large eddy simulationen_UK
dc.titleEmbedded large eddy simulation of transitional flow over NACA0012 aerofoilen_UK
dc.typeArticleen_UK

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