Natural Laminar-Flow blades for vertical-axis wind turbines

Conference · Fri Jan 01 00:00:00 EST 1982

OSTI ID:6741265

Klimas, P C

Natural Laminar Flow (NLF) airfoils are those which can achieve significant extents of laminar flow (greater than 30% of chord) solely through favorable pressure gradients. A number of candidate airfoil sections were defined and then screened in a performance simulation. The section selected for fabrication and test was one which supported a 47% chord laminar flow. A comparison of lift and drag coefficients is made. A two-blade set was extruded for a 5-m diameter vertical axis wind turbine. A test series was then conducted at a turbine rotational speed of 175 rpm and a corresponding equatorial Reynolds number of 360,000. Field and wind tunnel tests have been and will be conducted. (LEW)

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 6741265
• Report Number(s): SAND-82-2378C; CONF-820489-1; ON: DE83001816
• Resource Relation: Conference: 6. ASME annual technical conference, Orlando, FL, USA, 19 Apr 1982
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
AIRFOILS
LAMINAR FLOW
VERTICAL AXIS TURBINES
COMPUTERIZED SIMULATION
DESIGN
DRAG
EXTRUSION
FABRICATION
FIELD TESTS
POWER
REYNOLDS NUMBER
TESTING
VELOCITY
WIND TUNNELS
FLUID FLOW
MACHINERY
MATERIALS WORKING
SIMULATION
TUNNELS
TURBINES
TURBOMACHINERY
UNDERGROUND FACILITIES
WIND TURBINES
170602* - Wind Energy Engineering- Turbine Design & Operation