1. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Contours of normalized axial velocity superposed with in-plane velocity vectors in a horizontal plane at 30% blade span with blade at bottom-most position for (a) downwind and (b) upwind configurations of commercial 2 MW wind turbine; unsteady simulations are from Ref. [8] Figure Legend:

2. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Bird's-eye view of ETH wind turbine test (WEST) facility Figure Legend:

3. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Photograph of (a) Hitachi HTW2.0-80 turbine [15] (courtesy of Wind Power Ltd.) and (b) model turbine Figure Legend:

4. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Side view of turbine model. The location of strain gauge application on the torque shaft is shown by the shaded area. Figure Legend:

5. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Time series of ensemble-averaged rotor torque over one rotor rotation for downwind and upwind configurations at TSRs of (a) TSR opt, (b) TSR opt − 10%, and (c) TSR opt + 10%; rotor cone angle is 5 deg Figure Legend:

6. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Time series of ensemble-averaged rotor torque over one rotor rotation for downwind and upwind configurations at TSRs: (a) TSR opt, (b) TSR opt − 10%, and (c) TSR opt + 10%; rotor cone angle is 0 deg Figure Legend:

7. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Time series of ensemble-averaged rotor torque over one rotor rotation for downwind and upwind configurations at TSRs: (a) TSR opt, (b) TSR opt − 10%, and (c) TSR opt + 10%; rotor cone angle is 10 deg Figure Legend:

8. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 TSR versus wind speed characteristic of a variable-speed, variable pitch horizontal axis wind turbine; the characteristic is based on the NREL 5 MW reference wind turbine [17] Figure Legend:

9. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Amplitude spectrum and power spectral density of rotor torque for (a) downwind configuration and (b) upwind configuration; rotor cone angle is 5 deg and TSR is optimum Figure Legend:

10. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Amplitude spectrum and power spectral density of rotor torque for (a) downwind configuration and (b) upwind configuration; rotor cone angle is 0 deg and TSR is optimum Figure Legend:

11. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Amplitude spectrum and power spectral density of rotor torque for (a) downwind configuration and (b) upwind configuration; rotor cone angle is 10 deg and TSR is optimum Figure Legend:

12. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Amplitude spectrum and power spectral density of rotor torque without rotor while shaft is rotating Figure Legend:

13. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Effect of cone angle on contributions of specific frequencies to the torque variance. For downwind (a) and upwind (b) rotor orientations. Frequencies are f rotor, f blade, and f vortex and broadband excitation. Figure Legend:

14. Date of download: 6/1/2016 Copyright © ASME. All rights reserved. From: Design Considerations of Rotor Cone Angle for Downwind Wind Turbines J. Eng. Gas Turbines Power. 2015;138(5):052602-052602-10. doi:10.1115/1.4031604 Effect of cone angle on amplitude of rotor torque at frequency f Blade for downwind and upwind configurations Figure Legend: