%0 Conference Proceedings %T An investigation on the effects of using double-airfoil blades on the torque of a Vertical Axis Wind Turbine by means of numerical simulation %A Nazari, Ahmad %A Keikha, Sobhan %A Mojarab Naei, Kourosh %A Allahyari, Abdolhasib %A Djavareshkian, Mohammad Hassan %J The 31th Annual International Conference of Iranian Society of Mechanical Engineers & 9th Conference on Thermal Power Plants %D 2023