With the depletion of fossil fuels, increasing emissions, and the inevitability of global warming, the interest in renewable energy grows. Conventional solutions, like horizontal axis wind turbines, are reaching the limits of their capabilities. Therefore, there is renewed interest in other models, such as the Vertical Axis Wind Turbine (VAWT). While there are multiple variations on the VAWT, the most viable one is the Darrieus turbine, patented in 1932 (Darrieus, 1931). This turbine operates on the principle of aerodynamic forces acting on vertically placed blades, spinning around an offset center. When enough torque is generated, power is produced. The advantages of this configuration are that it is easily scalable, will not suffer from gravitational loads and has a low center of gravity, as heavy parts like the generator are placed near the surface (Eriksson, 2008). Especially the latter characteristic make it a good contender to its horizontal axis counterpart, as a VAWT can easily be placed on floaters and anchored in the deep sea (Akimoto, 2011). For the HAWT (Horizontal Axis Wind Turbine) this is far more problematic and costly, as placing an offshore HAWT can be even more expensive than the turbine itself (Moné, 2014). The VAWT , however, has some downsides as well. The blades pass through their own wake, it has a difficulty self-starting, and no stall mechanism so far has been invented that is safe enough. The aerodynamics associated with them are so complex that it currently remains difficult to understand or model these phenomena. However, it is thought that some of these problems can be mitigated through custom airfoil design (Migliore, 1980). Accurate modelling of VAWT aerodynamics will result in improved airfoils and has the possibility to enhance the turbine output. Therefore, this makes for an interesting and cutting-edge research field. A specific aerodynamic phenomenon was highlighted in this research, namely flow curvature. This phenomenon arises as a VAWT airfoil not only has a translational motion, but also a rotational one. As a result, the angle of attack varies over the chord. Namely, the rotational velocity at each point on the chord is normal to its local radius. This variation of angle of attack has large repercussions on the performance of the airfoil, and therefore also the blades. In essence, an airfoil orbiting the VAWT center will act as having added camber and added angle...