**4. Savonius Turbine**

Due to the lack of visualization results for the IceWind turbine, the traditional turbine type was compared with the performance of the new type (IceWind turbine). To ensure a good assessment, the authors used the Savonius turbine, as shown in Figures 15 and 16, with the same swept area: As = 4250.51 mm2. With the same *d* value of 75 mm, the Savonius blade height was equal to 56.67 mm. To ensure consistency, all IceWind turbine three-dimensional simulation conditions were applied for the Savonius turbine, including the domain dimensions, domain meshing, and turbulence modeling approach.

**Figure 15.** The Savonius turbine's three views (dimensions are in mm): (**a**) elevation, (**b**) side view, and (**c**) plan.

(**c**)

**Figure 16.** Savonius turbine.
