Lets say I´m designing a windmill and not only I want to simulate the way the blades behave when in a wind tunnel, but I also want to simulate the stress that all the parts (including gears inside the windmill mechanism) are subject to when the windmill is in use. Simply put: I have a windmill with a mechanism inside in order to produce energy. Is it possible to simulate the stress in the parts while the windmill is turning due to the action of the wind in the wind tunnel?

How can this be done?

Thanks for your inputs!

Ricardo Roque