...
The turbulent wind is flows towards the negative z-direction (into the page on the above diagram) at 12 m/s which is a typical rated wind speed for a turbine this size. This incoming flow makes the blade rotate at an angular velocity of -2.22 rad/s about the z-axis (the blade is thus spinning clockwise when looking at it from the front, like most real wind turbines). The blade root is offset from the axis of rotation by 1 meter to make it more representative of an actual turbine where the blades would connect to the hub. Note that to represent the blade being connected to a hub, the blade root is offset from the axis of rotation by 1 meter to represent the blade being connected to a hub.
...
Part 1
In this section of the tutorial, the blade geometry is imported, a mesh is created around the blade and the Fluent solver is then used to find the aerodynamics loading on the blade, the fluid streamlines and the torque generated. We will use air at standard conditions (15 degree celcius). Its density is 1.225 kg/m^3 and its viscosity is 1.7894e-05 kg/m*s.
...