Showing 1 - 10 of 22
The Savonius vertical axis wind turbine is simple in structure, has good starting characteristics, relatively low operating speeds, and an ability to accept wind from any direction, although it has a lower efficiency than some other vertical axis wind turbines. So far a number of experimental...
Persistent link: https://www.econbiz.de/10010805445
) simulations. The two equation k–ω shear-stress transport (SST) turbulence model is employed to predict quasi steady flow …
Persistent link: https://www.econbiz.de/10011189949
Small wind turbines are often sited in more complex environments than the open terrain sites assumed in relevant installation guidelines or in the international small wind turbine design standard IEC61400-2. The built environment is an example of such a complex environment and installation of...
Persistent link: https://www.econbiz.de/10011189964
characterization of the turbulent flow encountered by a turbine in a tidal strait. Metrics such as turbulence intensity, structure … functions, probability density functions, intermittency, coherent turbulence kinetic energy, anisotropy invariants, and a new … scalar measure of anisotropy are used to characterize the turbulence. The results indicate that the scalar anisotropy …
Persistent link: https://www.econbiz.de/10011189993
Operation of variable speed wind turbine generator (WTG) in the above-rated region characterized by high turbulence …
Persistent link: https://www.econbiz.de/10010804770
Spalart-Allmaras turbulence model were solved using NUMECA software, and characteristic curves were obtained. To validate …
Persistent link: https://www.econbiz.de/10010804886
tidal current turbine (TCT) array layout optimization. By adapting both momentum and turbulence transport equations of an …
Persistent link: https://www.econbiz.de/10010805131
Turbulence of the incoming wind field is of paramount importance to the dynamic response of wind turbines. Hence … reliable stochastic models of the turbulence should be available from which time series can be generated for dynamic response … and structural safety analysis. In the paper an empirical cross-spectral density function for the along-wind turbulence …
Persistent link: https://www.econbiz.de/10010805503
The influence of imposed turbulence on the development of the flow along a long row of wind turbines is studied, in … for modeling turbulence, and the wind turbine rotors are represented as actuator discs whose loading is determined through …
Persistent link: https://www.econbiz.de/10010805911
number of issues such as low wind speeds, high turbulence and noise issues. This paper presents the results of an … investigation carried out to assess the effect of turbulence on the noise emissions from a micro-scale horizontal axis wind turbine …-third octave sound levels to quantify the sound spectrum for the MWT. The second experiment assessed the effects of turbulence on …
Persistent link: https://www.econbiz.de/10010805951