CFD analiza Darrieus vjetroturbine

U ovom radu provedena je 2D CFD analiza Darrieus vjetroturbine s 3 lopatice. Za analizu je korišten programski paket ANSYS Fluent. Unutar njega je izrađen model vjetroturbine sa simetričnim i asimetričnim oblikom aeroprofila. Svi parametri simulacije definirani su u skladu s dostupnom literaturom kako bi se osigurala što veća točnost rezultata. Provedeno je ispitivanje neovisnosti rezultata o mreži konačnih volumena. Pri simulaciji je korišten kω SST model turbulencije. U oba slučaja je provedeno više simulacija u kojima se mijenjala brzina nastrujavanja vjetra kao i broj okretaja vjetroturbine iz čega su se zatim dobili dijagrami snage. Nakon provedenih simulacija uspoređeni su rezultati za oba oblika aeroprofila.In this thesis, a 2D CFD analysis of a Darrieus 3-bladed wind turbine was performed. ANSYS Fluent software package was used for analysis. Inside it, a model of a wind turbine with symmetrical and asymmetrical airfoil shape was made. All simulation parameters were defined according to the available literature to ensure the highest possible accuracy of the results. A grid independence study was performed. The k-ω SST turbulence model was used in the simulation. In both cases, several simulations were performed in which the wind speed as well as the number of revolutions of the wind turbine were varied, from which power diagrams were then obtained. After the simulations were finished, the results for both turbine configurations were compared