Wind tunnel performance data for two- and three-bucket Savonius rotors

Technical Report · Fri Jul 01 00:00:00 EDT 1977

OSTI ID:7310710

Blackwell, B F; Sheldahl, R E; Feltz, L V

Fifteen configurations of a Savonius rotor wind turbine were tested in the Vought Corporation Systems Division 4.9- x 6.1-m Low Speed Wind Tunnel to determine aerodynamic performance. The measured test variables were torque, rotational speed, and tunnel conditions. The data presented are in the form of power and torque coefficients as a function of speed ratio (or angular position for static starting torques). It is concluded that increasing Rynolds number and/or aspect ratio improves performance. The recommended configuration consists of two sets of two-bucket rotors, rotated 90/sup 0/ apart, with each rotor having a dimensionless gap width of 0.1 to 0.15.

• Research Organization: Sandia Labs., Albuquerque, NM (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 7310710
• Report Number(s): SAND-76-0131
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
SAVONIUS ROTORS
AERODYNAMICS
PERFORMANCE TESTING
TORQUE
CONFIGURATION
REYNOLDS NUMBER
SPECIFICATIONS
VELOCITY
FLUID MECHANICS
MECHANICS
ROTORS
TESTING
170602* - Wind Energy Engineering- Turbine Design & Operation