Preliminary work concerning the near wake structure of the Darrieus turbine

Strickland, J. H.; Goldman, A.

doi:10.2514/6.1980-627

Cited by 1 publication

(3 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This model can be used for turbines with high tip speed ratios. 28,29 The double actuator disk theory is a simplified mathematical model used to describe the flow of air through a vertical axis wind turbine (VAWT). In this model, the VAWT is represented by two actuator disks of equal diameter, one representing the upper half of the turbine and the other representing the lower half.…”

Section: Introductionmentioning

confidence: 99%

“…A single streamtube model can be used for a turbine at low wind speed, however, in most cases the computed power is greater than for experimental results 25–27 . In another study, Strickland introduced multiple streamtube method 28 which contained a series of parallel independent streamtubes in the rotor domain and the momentum theory for each streamtube was used for each blade element. This model can be used for turbines with high tip speed ratios 28,29 …”

Section: Introductionmentioning

confidence: 99%

“…In another study, Strickland introduced multiple streamtube method 28 which contained a series of parallel independent streamtubes in the rotor domain and the momentum theory for each streamtube was used for each blade element. This model can be used for turbines with high tip speed ratios 28,29 …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Innovative multiobjective optimization of a curved‐blade vertical axis wind turbine modeled by modified double multiple streamtube method

Sanaye,

Hosseinkhani

2024

Energy Science & Engineering

View full text Add to dashboard Cite

The attractive specifications of vertical axis wind turbine (VAWT) are its operating with low noise and wind in various directions. To achieve a higher performance of these turbines, modeling of a curved‐blade VAWT by the modified double multiple streamtube (DMST) method and optimizing this wind turbine are performed. The power coefficient and the total normal force acting on blades were selected as two objective functions. Minimizing the normal force acting on turbine blades as the second objective function was not observed in the open literature. The amount of normal force is crucial in the structural design of VAWT because it generates both the bending moment on blades and forces on supporting arms of VAWT. Another innovation of this study is to consider the shape coefficient parameter that determines the shape of the rotor geometry as a design variable in optimization procedure. A 3 m height curved‐blade VAWT type was optimized by this multi‐objective optimization technique. The optimum values of the design variables obtained by the Genetic Algorithm were selecting an elliptical rotor geometry, pitch angle −1.4°, diameter/height 1.3, blade aspect ratio 19.8, tip speed ratio 4.3 and selecting three blades which could provide a power coefficient of 0.49 and a normal force of 158.7 N.

show abstract

Section: Introductionmentioning

confidence: 99%