Double multiple streamtube model with recent improvements

Journal Article · Sun May 01 00:00:00 EDT 1983 · J. Energy; (United States)

OSTI ID:6857303

Paraschivoiu, I; Delclaux, F

The objective is to show the new capabilities of the double multiple streamtube (DMS) model for predicting the aerodynamic loads and performance of the Darrieus vertical-axis turbine. The original DMS model has been improved (DMSV model) by considering the variation in the upwind and downwind induced velocities as a function of the azimuthal angle for each streamtube. A comparison is made of the rotor performance for several blade geometries (parabola, catenary, troposkien, and Sandia shape). A new formulation is given for an approximate troposkien shape by considering the effect of the gravitational field. The effects of three NACA symmetrical profiles, 0012, 0015 and 0018, on the aerodynamic performance of the turbine are shown. Finally, a semiempirical dynamic-stall model has been incorporated and a better approximation obtained for modeling the local aerodynamic forces and performance for a Darrieus rotor.

• Research Organization: Institut de recherche d'Hydro-Quebec (IREQ) Varennes, Quebec
• OSTI ID: 6857303
• Journal Information: J. Energy; (United States), Vol. 7:3
• Country of Publication: United States
• Language: English

Related Subjects

17 WIND ENERGY
DARRIEUS ROTORS
AERODYNAMICS
FLOW MODELS
PERFORMANCE TESTING
TURBINE BLADES
COMPARATIVE EVALUATIONS
CONFIGURATION
AIR FLOW
DYNAMIC LOADS
GRAVITATIONAL FIELDS
OPTIMIZATION
TROPOSKIEN SHAPE
VELOCITY
WIND
FLUID FLOW
FLUID MECHANICS
GAS FLOW
MATHEMATICAL MODELS
MECHANICS
ROTORS
SHAPE
TESTING
170602* - Wind Energy Engineering- Turbine Design & Operation