Design of wind turbine blades or wind turbines, in general, is an active field of research. The computational approach is to simulate airflow around a virtual wind turbine for a variety of blade designs and calculate resultant torques. Most reported Computational Fluid Dynamics (CFD) study in this area either use static mesh approach or proprietary software. Static mesh approach is slowly being phased out because of overly cumbersome mesh generation process. Works by proprietary codes can be not be reproduced by most other labs. We are studying the aerodynamics of wind turbines through the CFD simulations based on Overset method. Our CFD simulations are based on freely available and open source CFD code OpenFoam. Recent work in this area by the code CFDShip-Iowa will be replicated through OpenFoam and results tested with data available from National Renewable Energy Laboratory (NREL) wind tunnel experiments on Unsteady Aerodynamics Experiment (UAE).