ANALYSIS OF FLOW THROUGH DARRIEU'S VERTICAL AXIS TURBINE

Završni rad se bavi stacionarnom analizom strujanja fluida unutar Darrieusove vjetroturbine tipa H pomoću računalnog programa Ansys Fluent. Provedene su simulacije za različite početne pozicije lopatica od 0° do 180°, s koracima od 10°. Proces istraživanja obuhvaća nekoliko ključnih koraka. Prvo se izrađuje geometrija vjetroturbine, zatim se izrađuje numerička mreža. Nakon toga slijedi numerička analiza i prikaz rezultata, a sve se provodi unutar komponenti sustava Ansys Workbench programa. Rezultati dobiveni iz analize uključuju vrijednosti koeficijenata uzgona za svaku lopaticu turbine u različitim položajima rotacije. U radu se također prikazuju konture statičkog i dinamičkog tlaka te konture brzine za različite položaje lopatica. Ovaj rad pruža korisne uvide u ponašanje Darrieusove vjetroturbine i može pružiti važne informacije o učinkovitosti i dizajnu ovog tipa vjetroturbina.The Final Paper is focusing on stationary analysis of the fluid flow inside the Darrieus type H wind turbine using the Ansys Fluent computer program. Simulations were carried out for different blade initial positions from 0° to 180°, with steps of 10°. The research process includes couple of key steps. First, the geometry of the wind turbine is created, following which numerical grid was created. This is followed by numerical analysis and display of results, and everything is carried out within the system components of the Ansys Workbench program. The results obtained from the analysis include lift coefficient values for each turbine blade in different rotational positions. The Paper also showcases static and dynamic pressure contours and velocity contours for different blade positions. This work gives useful insights into the behavior of the Darrieus wind turbine and can provide important information on the performance and design of this type of wind turbin