Evaluation study of a Navier-Stokes CFD aeroelastic model of wind turbine airfoils in classical flutter

Baxevanou, CA; Chaviaropoulos, PK; Voutsinas, SG; Vlachos, NS

dc.contributor.author	Baxevanou, CA	en
dc.contributor.author	Chaviaropoulos, PK	en
dc.contributor.author	Voutsinas, SG	en
dc.contributor.author	Vlachos, NS	en
dc.date.accessioned	2014-03-01T01:28:21Z
dc.date.available	2014-03-01T01:28:21Z
dc.date.issued	2008	en
dc.identifier.issn	0167-6105	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18811
dc.subject	Aeroelasticity	en
dc.subject	CFD	en
dc.subject	Classical flutter	en
dc.subject	Stability	en
dc.subject	Wind turbine blades	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Mechanics	en
dc.subject.other	Aerodynamics	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Damping	en
dc.subject.other	Flutter (aerodynamics)	en
dc.subject.other	Navier Stokes equations	en
dc.subject.other	Turbulence models	en
dc.subject.other	Elastic model	en
dc.subject.other	Modal damping	en
dc.subject.other	Airfoils	en
dc.subject.other	Aerodynamics	en
dc.subject.other	Airfoils	en
dc.subject.other	Computational fluid dynamics	en
dc.subject.other	Damping	en
dc.subject.other	Flutter (aerodynamics)	en
dc.subject.other	Navier Stokes equations	en
dc.subject.other	Turbulence models	en
dc.title	Evaluation study of a Navier-Stokes CFD aeroelastic model of wind turbine airfoils in classical flutter	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.jweia.2008.03.009	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.jweia.2008.03.009	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	This paper describes a new aeroelastic numerical model, which combines a Navier-Stokes CFD solver with an elastic model and two coupling schemes for the study of the aeroelastic behaviour of wind turbine blades undergoing classical flutter. The basic characteristics of the aerodynamic and elastic models are presented together with the coupling schemes. The present model is evaluated by comparing with previous numerical results and the corresponding linear analytical solutions. Consequently a, parametric study is carried out. Conclusions are drawn about the ability of the model to handle the aeroelastic behaviour of an airfoil and about the most appropriate coupling scheme in terms of predicting the modal damping and the flutter limiting point. The present study shows that the predictions are only slightly affected by the coupling or the space discretization scheme and mainly by the turbulence model used. (C) 2008 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Wind Engineering and Industrial Aerodynamics	en
dc.identifier.doi	10.1016/j.jweia.2008.03.009	en
dc.identifier.isi	ISI:000257406800012	en
dc.identifier.volume	96	en
dc.identifier.issue	8-9	en
dc.identifier.spage	1425	en
dc.identifier.epage	1443	en