Design of optimized profiles for stall regulated HAWTs. Part 1. Design concepts and method formulation

Chaviaropoulos, P; Bouras, B; Leoutsakos, G; Papailiou, KD

dc.contributor.author	Chaviaropoulos, P	en
dc.contributor.author	Bouras, B	en
dc.contributor.author	Leoutsakos, G	en
dc.contributor.author	Papailiou, KD	en
dc.date.accessioned	2014-03-01T01:41:48Z
dc.date.available	2014-03-01T01:41:48Z
dc.date.issued	1993	en
dc.identifier.issn	0309524X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/23646
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-0027786589&partnerID=40&md5=8b3be3aa7e934ce7920dc385eeb703e0	en
dc.subject.other	Airfoils	en
dc.subject.other	Drag	en
dc.subject.other	Lift	en
dc.subject.other	Optimization	en
dc.subject.other	Rotors	en
dc.subject.other	Horizontal axis wind turbines	en
dc.subject.other	Optimized profiles	en
dc.subject.other	Wind turbines	en
dc.subject.other	Aerofoil Blades/Profiles	en
dc.subject.other	Design	en
dc.subject.other	Stall Regulated	en
dc.subject.other	Wind Turbines-Horizontal Axis	en
dc.title	Design of optimized profiles for stall regulated HAWTs. Part 1. Design concepts and method formulation	en
heal.type	journalArticle	en
heal.publicationDate	1993	en
heal.abstract	The paper presents a methodology developed for the design of optimized airfoils for stall regulated HAWTs. Given optimized lift and drag characteristics curves for maximum energy capture, the method focuses on the design of the corresponding profile shape. Although the problem is a multi-disciplinary one, the present design philosophy is based on a single-point approach, which, through an iterative procedure aims to achieve the best possible compromise of the imposed requirements. The adopted methodology is based on a combination of an inverse viscous and an inverse inviscid constituent. The viscous part provides an optimized suction side velocity distribution for a given Reynolds number. A compatible pressure side velocity distribution is then constructed for the given design lift coefficient. At a final stage the profile shape is provided by the inverse inviscid solver using an iterative procedure to effect profile closure automatically. The resulting profile performance is fully assessed using a direct viscous-inviscid interaction method. Four new profiles were designed. Three of them correspond to the hub, mid and tip sections of an optimized HAWT rotor. The fourth was designed for lower Reynolds number operation and was wind tunnel tested at Southampton University. The design philosophy, the new profiles and their characteristic curves are presented in Part 1 of the paper. The detailed characteristics of the optimized profiles are discussed in the companion Part 2 paper.	en
heal.journalName	Wind Engineering	en
dc.identifier.volume	17	en
dc.identifier.issue	6	en
dc.identifier.spage	275	en
dc.identifier.epage	287	en