Darrieus Wind Turbine

[Mahu]

I am looking for a tutorial of a flow simulation of a Darrieus wind turbine. The turbine rotates around an axes that is perpendicular to the wind (vertical for air, horizontal in rivers). The blades are parallel to the rotation axis. The closest I found was standard wind turbines of fan in an air flow. This simulation would be similar to the one of an helicopter in forward motion except that its blade are perpendicular to the rotation axis.
Many thanks to anyone who read this far and more to the one giving a link!!!