Calibration of the 7—equation transition model for high Reynolds flows at low mach

Colonia, S., Leble, V., Steijl, R. and Barakos, G. (2016) Calibration of the 7—equation transition model for high Reynolds flows at low mach. Journal of Physics: Conference Series, 753, 082027. (doi:10.1088/1742-6596/753/8/082027)

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Abstract

The numerical simulation of flows over large-scale wind turbine blades without considering the transition from laminar to fully turbulent flow may result in incorrect estimates of the blade loads and performance. Thanks to its relative simplicity and promising results, the Local-Correlation based Transition Modelling concept represents a valid way to include transitional effects into practical CFD simulations. However, the model involves coefficients that need tuning. In this paper, the γ—equation transition model is assessed and calibrated, for a wide range of Reynolds numbers at low Mach, as needed for wind turbine applications. An aerofoil is used to evaluate the original model and calibrate it; while a large scale wind turbine blade is employed to show that the calibrated model can lead to reliable solutions for complex three-dimensional flows. The calibrated model shows promising results for both two-dimensional and three-dimensional flows, even if cross-flow instabilities are neglected.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Barakos, Professor George and Leble, Mr Vladimir and Steijl, Dr Rene and Colonia, Mr Simone
Authors: Colonia, S., Leble, V., Steijl, R., and Barakos, G.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Journal of Physics: Conference Series
Publisher:Institute of Physics Publishing Ltd.
ISSN:1742-6588
ISSN (Online):1742-6596
Published Online:03 October 2016
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Journal of Physics: Conference Series 753: 082027
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
718841AVATARGeorge BarakosEuropean Commission (EC)608396ENG - AEROSPACE SCIENCES
733371MARE-WINTGeorge BarakosEuropean Commission (EC)309395ENG - AEROSPACE SCIENCES