This page has only limited features, please log in for full access.
Two novel four-blade H-darrieus vertical axis wind turbines (VAWTs) have been proposed for enhancing self-start capability and power production. The two different airfoil types for the turbines are assessed: a cambered S815 airfoil and a symmetric NACA0018 airfoil. For the first novel wind turbine configuration, the Non-Similar Airfoils 1 (NSA-1), two NACA0018 airfoils, and two S815 airfoils are opposite to each other. For the second novel configuration (NSA-2), each of the S815 airfoils is opposite to one NACA0018 airfoil. Using computational fluid dynamics (CFD) simulations, static and dynamic conditions are evaluated to establish self-starting ability and the power coefficient, respectively. Dynamic stall investigation of each blade of the turbines shows that NACA0018 under dynamic stall impacts the turbine’s performance and the onset of dynamic stall decreases the power coefficient of the turbine significantly. The results show that NSA-2 followed by NSA-1 has good potential to improve the self-starting ability (13.3%) compared to the turbine with symmetric airfoils called HT-NACA0018. In terms of self-starting ability, NSA-2 not only can perform in about 66.67% of 360
Sajad Maleki Dastjerdi; Kobra Gharali; Armughan Al-Haq; Jatin Nathwani. Application of Simultaneous Symmetric and Cambered Airfoils in Novel Vertical Axis Wind Turbines. Applied Sciences 2021, 11, 8011 .
AMA StyleSajad Maleki Dastjerdi, Kobra Gharali, Armughan Al-Haq, Jatin Nathwani. Application of Simultaneous Symmetric and Cambered Airfoils in Novel Vertical Axis Wind Turbines. Applied Sciences. 2021; 11 (17):8011.
Chicago/Turabian StyleSajad Maleki Dastjerdi; Kobra Gharali; Armughan Al-Haq; Jatin Nathwani. 2021. "Application of Simultaneous Symmetric and Cambered Airfoils in Novel Vertical Axis Wind Turbines." Applied Sciences 11, no. 17: 8011.