1180 INVESTIGATION OF WIND TURBINE FLOW AND WAKE
نویسندگان
چکیده
منابع مشابه
Effects of Freestream Turbulence in a Model Wind Turbine Wake
The flow structure in the wake of a model wind turbine is explored under negligible and high turbulence in the freestream region of a wind tunnel at Re ∼ 7× 104. Attention is placed on the evolution of the integral scale and the contribution of the large-scale motions from the background flow. Hotwire anemometry was used to obtain the streamwise velocity at various streamwise and spanwise locat...
متن کاملAn Experimental Investigation on the Wake Characteristics behind a Novel Twin-Rotor Wind Turbine
An experimental study was performed to examine the wake characteristics and aeromechanic performance of an innovative twin-rotor wind turbine (TRWT) in comparison with those of a conventional single-rotor wind turbine (SRWT). The comparative study was conducted in a large-scale Aerodynamic/Atmospheric Boundary Layer (AABL) wind tunnel with the TRWT and SRWT model sited in simulated atmospheric ...
متن کامل3D-simulation of the turbulent wake behind a wind turbine
The paper relates to the simulation of the airflow around a wind turbine (WT) of the type ENERCON E66 with emphasis on the turbulent wake. The simulations were undertaken with the Computational Fluid Dynamics (CFD) software ANSYS FLUENT 6.3 using the LES technique for turbulence modeling. It is the aim of the work to capture the full threedimensional turbulent flow behind a WT in a sufficient s...
متن کاملVisualization of the tip vortices in a wind turbine wake
In the present study, an experimental study was conducted to characterize the formation and the evolution of the helical tip vortices and turbulent flow structures in the wake of a horizontal axis wind turbine model placed in an atmospheric boundary layer wind. A high-resolution particle image velocimetry system was used to make detailed flow field measurements to quantify the time evolution of...
متن کاملNumerical Investigation of S822 Wind Turbine Airfoil
We carried out direct numerical simulations of the flow past a two-dimensional S822 wind turbine blade section at a chord Reynolds number of Re=100,000 and an angle of attack of α = 5deg. Without blade rotation the separated boundary layer “rolls up” into spanwise vortices which then “break up” into smaller scale structures leading to transition to turbulence. Simulation results compare favorab...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF)
سال: 2013
ISSN: 2424-2888
DOI: 10.1299/jsmeicjwsf.2013.4._1180-1_