Fig 1.
Free-stream velocity and rotor diameter.
Fig 2.
Schematic diagram of experimental setup.
Table 1.
Power output without diffuser.
Table 2.
Power output with diffuser.
Fig 3.
Boundary conditions.
Fig 4.
(A) Whole Computational Domain (B) Diffuser Domain.
Table 3.
Mesh independence study.
Table 4.
Divergence angle study at h = 0.2 m.
Table 5.
Flange height study at α = 4°.
Table 6.
Wind power with and without diffuser.
Table 7.
Power augmentation.
Fig 5.
Comparison with experimental work [34].
Fig 6.
Velocity augmentation at α = 2⁰.
Fig 7.
Velocity augmentation at α = 4⁰.
Fig 8.
Velocity augmentation at α = 7⁰.
Fig 9.
(A) Velocity Comparison at U0 = 2 m/s; Contours of velocity at α = (B) 2⁰ (C) 4⁰ (D) 7⁰.
Fig 10.
(A) Velocity Comparison at U0 = 6 m/s; Contours of velocity at α = (B) 2⁰ (C) 4⁰ (D) 7⁰.
Fig 11.
(A) Velocity Comparison at U0 = 10 m/s; Contours of velocity at α = (B) 2⁰ (C) 4⁰ (D) 7⁰.
Fig 12.
(A) Pressure Coefficient at U0 = 2 m/s; Contours of velocity at α = (B) 2⁰ (C) 4⁰ (D) 7⁰.
Fig 13.
(A) Pressure Coefficient Comparison at U0 = 6 m/s; Contours of velocity at α = (B) 2⁰ (C) 4⁰ (D) 7⁰.
Fig 14.
(A) Pressure Coefficient Comparison at U0 = 10 m/s; Contours of velocity at α = (B) 2⁰ (C) 4⁰ (D) 7⁰.
Fig 15.
Location of turbine based on U0.
Fig 16.
Location of turbine based on α.