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Dumitrescu H.,Gheoghe Mihoc Caius Iacob Institute of Statistics and Applied Mathematics | Cardos V.,Gheoghe Mihoc Caius Iacob Institute of Statistics and Applied Mathematics | Dumitrache A.,Gheoghe Mihoc Caius Iacob Institute of Statistics and Applied Mathematics | Frunzulic F.,Gheoghe Mihoc Caius Iacob Institute of Statistics and Applied Mathematics | Frunzulic F.,Polytechnic University of Bucharest
Proceedings of the Romanian Academy Series A - Mathematics Physics Technical Sciences Information Science | Year: 2010

A first study is reported of the influence of unsteady flow on the aerodynamics and aeroacoustics of vertical axis wind turbines by numerical simulation. The combination of aerodynamic predictions with a discrete vortex method and aeroacoustic predictions based on Ffowcs Williams-Hawkings equation is used to achieve this goal. The numerical results show that unsteady flow of the turbine has a significant influence on the turbine aerodynamics and can lead to a decrease in generated noise as compared to the conventional horizontal axis wind turbine at the similar aerodynamic performance. Source

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