846 KB15 KB201320252013Hren, GorazdPredin, AndrejŽagar, Ivanletnik:6številka:iss. 1str. 61-68COBISSID:1024133468ISSN:1855-5748URN:URN:NBN:SI:doc-BDUKRE08enFakulteta za energetikoJET on-lineJournal of energy technologyairfoilsCADelektrodinamikaturbinske lopaticevetrne turbinewind turbine blades geometryGeneric model of wind turbine blades| Generični model lopatic vetrne turbine|A wind turbine is a device that extracts energy from the wind, which has been shown to be one of the most viable sources of renewable energy. Current manufacturing technology enables the low-cost production of wind energy turbines, which is competitive with conventional sources of energy, especially in steady wind areas. The rotor blade is a key element in a wind turbine system. Most commercially available blades incorporate airfoil-shaped cross sections, which have been found to be very efficient at lower wind speeds. Computational fluid dynamics solve and analyse problems involving fluid flows. Many airfoil shapes are combined and analysed in order to achieve efficient blade design. In order to prepare various geometrical solutions for computational fluid dynamics analysis, time-consuming and error-prone work has to be done. In this paper, the automation of the process of preparing the various geometrical models for computational fluid dynamics analysis of wind turbine blade is describedVetrna turbina je naprava, ki pridobiva energijo iz vetra in izkazano eden izmed najbolj uspešnih obnovljivih virov energije. Aktualna tehnologija proizvodnje vetrnih turbin omogoča nizko ceno in stroške vetrne energije, ki je konkurenčna znanim konvencionalnim virom energije, posebej na območjih s stalnim vetrom. Lopatica rotorja je ključni element v sistemu vetrne turbine. Večina komercialnih vetrnih turbin ima lopatice v obliki profila letalskega krila, za katere je ugotovljena večja učinkovitost pri nižjih hitrostih vetra.Numerična dinamika tekočin omogoča reševanje in analizo tokov tekočin z uporabo računalniških numeričnih metod. Da bi dosegli učinkovito obliko lopatic je mogoče geometrijske oblike lopatic kombinirati in analizirati. Pripravljanje geometrije lopatic za numerične analize je zamudno in natančno delo. Članek opisuje avtomatizacijo procesa priprave različnih variant vetrnih turbinskih lopatic primernih za numerične analize dinamike tekočinTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaUniverza v Mariboru, Fakulteta za energetiko