Comparison of Propeller Turbine Performance Using Airfoil Blades and Without Airfoil

Design and Optimization of Tidal turbine Airfoil

Numerical Investigation of S822 Wind Turbine Airfoil

We carried out direct numerical simulations of the flow past a two-dimensional S822 wind turbine blade section at a chord Reynolds number of Re=100,000 and an angle of attack of α = 5deg. Without blade rotation the separated boundary layer “rolls up” into spanwise vortices which then “break up” into smaller scale structures leading to transition to turbulence. Simulation results compare favorab...

Optimization of Looped Airfoil Wind Turbine (LAWT) and Looped Airfoil Hydro-Turbine (LAHT) Design Parameters for Maximum Power Generation

................................................................................................................................... vii

Aerodynamic Performance Enhancement of a NACA 66-206 Airfoil Using Supersonic Channel Airfoil Design

Supersonic channel airfoil design techniques have been shown to significantly reduce drag in high-speed flows over diamond shaped airfoils by Ruffin and colleagues. The effect of applying these techniques to a NACA 66-206 airfoil is presented. The design domain entails channel heights of 8-16.6% thickness-to-chord and speeds from Mach 1.5-3.0. Numerical simulations show an increase in the lift-...

Wind Turbine Airfoil Performance Optimization using the Vortex Lattice Method and a Genetic Algorithm

This paper examines the viability of using the combination of the vortex lattice method for aerodynamic performance prediction with a genetic algorithm for the optimization of the aerodynamic performance of horizontal axis wind turbine blades. The work described in this paper includes the adaptation of a vortex lattice code designed to predict propeller performance to wind turbine performance p...