Ph.D., Mechanical Engineering, University of Louisville, 2011–Present
M.S., Mechanical Engineering, University of Louisville, 2011
B.S., Water Supply and Sewage Engineering, North China Institute of Water Conservancy and Electric Power, 2009
The H-rotor, one kind of vertical axis wind turbine (VAWT), exhibits its own advantages in urban usage. As a VAWT, the principle advantage of H-rotors is their omni-directional, easily accepting wind from any direction without costly yaw system. And the simple geometry makes them easier to build and transport. Based on their symmetric appearances, two dimensional simulations are applied to investigate the aerodynamic performance of H-rotors. Both direct numerical simulation and Reynolds averaged Navier-Stokes model are used in the simulation. For DNS study the incompressible Navier-Stokes equations are solved with academic CFD package OVERTURE. And the commercial CFD package ANSYS-Fluent was used to solve the RANS equations and transportation equations. The interactions between blades are studied to evaluate their effects on the power outputs of H-rotors. And the effects of the blade geometry are also investigated. Based on the research, we hope an optimized H-rotor can be found which could significantly improve the power output.