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With the background of offshore wind energy projects, this paper studies aerodynamic performance and geometric characteristics of large capacity wind turbine rotors (1 to 10 MW), and the main characteristic parameters such as the rated wind speed, blade tip speed, and rotor solidity. We show that the essential criterion of a high-performance wind turbine is a highest possible annual usable energy...
The flow Held of the NREL phase VI horizontal axis wind turbine has been modeled with a full 3-D steady/unsteady RANS approach. In the investigations a full Navier Stokes code FLUENT is used instead of engineering models. The calculations are compared with the measurements of the Unsteady aerodynamic experiment at the NASA Ames wind tunnel at wind speeds between 8 m/s and 15 m/s in steps of 1 m/s...
The Spalart-Allmaras turbulence model and the standard turbulence model were used to simulate the 3-D flow in low specific speed Francis runner with splitter blades and the simulating capability of these two models were compared. The calculation process was based on continuity equation and Navies-Stokes equation. The governing equations were discretized by finite-volume method and SIMPLIC method was...
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