On the effect of the rotor geometry on the formation and the development of its wake

Voutsinas, SG; Rados, KG; Zervos, A

dc.contributor.author	Voutsinas, SG	en
dc.contributor.author	Rados, KG	en
dc.contributor.author	Zervos, A	en
dc.date.accessioned	2014-03-01T01:08:58Z
dc.date.available	2014-03-01T01:08:58Z
dc.date.issued	1992	en
dc.identifier.issn	0167-6105	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/10761
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0026867892&partnerID=40&md5=f4c49d993ef586ffeb8c2c2ce5518c69	en
dc.subject.classification	Engineering, Civil	en
dc.subject.classification	Mechanics	en
dc.subject.other	Aerodynamics--Mathematical Models	en
dc.subject.other	Aerodynamics--Wakes	en
dc.subject.other	Rotors--Aerodynamics	en
dc.subject.other	Kappa-Epsilon Models	en
dc.subject.other	Near Wake Regions	en
dc.subject.other	Rotor Geometry	en
dc.subject.other	Velocity Profiles	en
dc.subject.other	Vortex Methods	en
dc.subject.other	Wind Turbines	en
dc.subject.other	Geometry	en
dc.subject.other	Modelling	en
dc.subject.other	Rotors	en
dc.subject.other	Wakes	en
dc.subject.other	Wind Turbines	en
dc.title	On the effect of the rotor geometry on the formation and the development of its wake	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	1992	en
heal.abstract	In order to formulate more accurate simple models, the traditional kinematic models should be enriched. Retaining the similarity of the flow in the far-wake region, enrichment can be introduced through machine-dependent far-field profiles. In the present paper this is accomplished by coupling a linear vortex model with a k-ε{lunate} viscous one, for the analysis of the near-wake region. The far-field profiles are then obtained through matching across the inlet plane of the far-wake region selected at an axial distance of approximately 3-4 diameters. The use of a vortex method for the evaluation of the velocity profiles just downstream the rotor gives an account of the effect of the rotor geometry. As a result the far-wake self-similar velocity profiles are no longer depending on only one parameter, i.e. the initial deficit. Instead they depend on the circulation distribution defined by means of the vortex model. Thus this approach can be termed as a multi-parametric wake modelling. © 1992.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Journal of Wind Engineering and Industrial Aerodynamics	en
dc.identifier.isi	ISI:A1992JD99700028	en
dc.identifier.volume	39	en
dc.identifier.issue	1-3	en
dc.identifier.spage	283	en
dc.identifier.epage	291	en