A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A free vortex simulation method for the straight bladed vertical axis wind turbine
Abstract A free vortex model for the straight bladed vertical axis wind turbine (VAWT) was constructed and tested on several existing turbines. Good agreement between experimental and calculated power coefficients was obtained. In contrast to the classical approach, using the Biot-Savart law, the wake-induced velocity field was calculated with a multigrid technique solving the Poisson equation in a rectangular grid. Furthermore, flow curvature effects were investigated. It was found that for the turbines under consideration, the flow curvature effects are negligible. Unsteady aerodynamic effects were included by the use of a modified Boeing-Vertol dynamic stall model. The obtained mathematical model mainly can be used for two purposes: (1) parametric optimization of the VAWT; and (2) optimization of pitch controlled turbines.
A free vortex simulation method for the straight bladed vertical axis wind turbine
Abstract A free vortex model for the straight bladed vertical axis wind turbine (VAWT) was constructed and tested on several existing turbines. Good agreement between experimental and calculated power coefficients was obtained. In contrast to the classical approach, using the Biot-Savart law, the wake-induced velocity field was calculated with a multigrid technique solving the Poisson equation in a rectangular grid. Furthermore, flow curvature effects were investigated. It was found that for the turbines under consideration, the flow curvature effects are negligible. Unsteady aerodynamic effects were included by the use of a modified Boeing-Vertol dynamic stall model. The obtained mathematical model mainly can be used for two purposes: (1) parametric optimization of the VAWT; and (2) optimization of pitch controlled turbines.
A free vortex simulation method for the straight bladed vertical axis wind turbine
Vandenberghe, D. (author) / Dick, E. (author)
Journal of Wind Engineering and Industrial Aerodynamics ; 26 ; 307-324
1987-07-23
18 pages
Article (Journal)
Electronic Resource
English
Active Blade Pitch Control for Straight Bladed Darrieus Vertical Axis Wind Turbine of New Design
| British Library Online Contents | 2013