Fig 1.
Schematic representation of wind turbine wake when turbine is placed in an atmospheric boundary layer [27].
Fig 2.
Flow of study and methodology.
Fig 3.
(a) The meshing and geometry of the helical turbine (b) Meshing and twist angle of the turbine in COMSOL (c) Geometry of the complete system.
Fig 4.
Error study.
Fig 5.
6 Points across the diameter and 30 points along the axis for data.
Fig 6.
(a) Streamline velocity depiction through the ducted Horizontal Axis-Helical Wind Turbine system. (b) Velocity and Pressure relation on a cut plane through the ducted Horizontal Axis-Helical Wind Turbine system. (c) Pressure on the turbine defining the velocity profile across the turbine.
Fig 7.
Velocity gradient throughout the turbine at various points and velocity.
Table 1.
Simulation data evaluation metrics.
Fig 8.
Simulation based and predicted data co-relation.
Fig 9.
Statistical evaluation of the relationship between the inlet velocity and velocity at different segments of the turbine.
Fig 10.
Pressure and velocity relation in an empty diffuser.
Fig 11.
Blade velocity and force diagram.
Here, ω is the rotation, r is the radius, ϴ is the angle.