Abstract
The study of aerodynamic performance of vertical axis wind turbine is the basis of the VAWT design. The double disk multiple stream-tube, one of the numerical models for predicting the aerodynamic performance of the wind turbine, was used to calculate the aerodynamic performance of the Sandia DOE-17m VAWT. As shown in the comparison of the calculation results and the field test data, the DDMT model is efficient in predicting the aerodynamic performance. And then, a deep analysis of the inherent mechanisms that how the geometric parameters of wind turbine rotor like height to diameter ratio, solidity, chord and the number of blades affect the aerodynamic performance of turbine was made in the present work. The results will be the theoretical basis for the optimization of the design in aerodynamic performance of VAWT in the future work.
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