A model of what though. What parameters are you modelling?
Eg. You can develop a Matlab model using cefficient and variable inputs to give a theroretical output. You could use CFD with the conditions to get a profile of the interaction between the blades and the wind.
The following parameters are to be considered; wind speed,height from the ground,rotor size,turbine swept area,power coefficient,air density,blade diameter,dew point temperature and others you might feel are necessary.