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Pub. No.:    WO/2010/136357    International Application No.:    PCT/EP2010/056810
Publication Date: 02.12.2010 International Filing Date: 18.05.2010
F03D 1/06 (2006.01), F03D 11/00 (2006.01)
Applicants: CHONGQING UNIVERSITY [CN/CN]; 174 Shazheng Street, Shapingba District Chongqing 400030 (CN) (For All Designated States Except US).
TECHNICAL UNIVERSITY OF DENMARK [DK/DK]; Anker Engelundsvej 1 Bygning 101A DK-2800 Kgs. Lyngby (DK) (For All Designated States Except US).
SHEN, Wen Zhong [CN/DK]; (DK) (For US Only).
WANG, Xu Dong [CN/DK]; (DK) (For US Only).
CHEN, Jin [CN/CN]; (CN) (For US Only).
ZHU, Wei Jun [CN/DK]; (DK) (For US Only).
SØRENSEN, Jens Nørkær [DK/DK]; (DK) (For US Only).
CHENG, Jiangtao [CN/CN]; (CN) (For US Only)
Inventors: SHEN, Wen Zhong; (DK).
WANG, Xu Dong; (DK).
CHEN, Jin; (CN).
ZHU, Wei Jun; (DK).
SØRENSEN, Jens Nørkær; (DK).
CHENG, Jiangtao; (CN)
Agent: HØIBERG A/S; St. Kongensgade 59 A DK-1264 Copenhagen K (DK)
Priority Data:
200910143733.X 25.05.2009 CN
09161960.1 04.06.2009 EP
61/184,506 05.06.2009 US
Abstract: front page image
(EN)The present invention relates to airfoils and design and design optimization of airfoils, in particular airfoils of rotor blades for wind turbines. One aspect of the invention relates to an airfoil with an external shape provided by an airfoil profile defined by a limited number of parameters, such as a set of parameters. Another aspect of the invention relates to a method for designing an airfoil by means of an analytical airfoil profile, said method comprising the step of applying a conformal mapping to a near circle in a near circle plane, wherein the near circle is at least partly expressed by means of an analytical function, said conformal mapping transforming the near circle in the near circle plane to the airfoil profile in an airfoil plane.
(FR)La présente invention concerne les profils aérodynamiques, la conception et une optimisation de la conception des profils aérodynamiques, en particulier des profils aérodynamiques de pales de rotor pour turbines éoliennes. Un aspect de l'invention concerne un profil aérodynamique avec une forme externe fournie par un profil aérodynamique défini par un nombre limité de paramètres, tel qu'un jeu de paramètres. Un autre aspect de l'invention concerne un procédé de conception des profils aérodynamiques au moyen d'un profil aérodynamique analytique, ledit procédé comprenant l'étape consistant à appliquer une transformation conforme à un pseudo-cercle dans un plan de pseudo-cercle, le pseudo-cercle étant au moins en partie exprimé au moyen d'une fonction analytique, ladite transformation conforme transformant le pseudo-cercle dans le plan du pseudo-cercle en profil aérodynamique dans un plan de profil aérodynamique.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)