Towards the Design of Low Noise Level Wind Turbines

• Autorzy: Chaja P. , Koronowicz T.
• Języki publikacji: EN

Abstrakty

EN

According to the authors’ hypothesis generation of high intensity noise is caused by generation of vorticity structures inducing velocities that can be locally higher than the velocity of sound. The localization and magnitude of vorticity concentration can be precisely defined on the basis of a double layer vortex model. Knowing the localization and mechanism of generation of significantly high induced velocities, turbine blades can be shaped in such a way so as to decrease the concentration of vorticity in these zones. According to the hypothesis described in this paper, a modification of turbine blades at the design stage results in their quieter operation for higher loads and wind velocities. The authors base their hypothesis on the experience from design works concerning low noise ship propellers. The following paper focuses on these tasks.

Słowa kluczowe

EN

vortex theory; noise; wind turbines

• Wydawca: Politechnika Gdańska
• Czasopismo: TASK Quarterly : scientific bulletin of Academic Computer Centre in Gdansk
• Rocznik: 2009
• Tom: Vol. 13, No 4
• Strony: 393--401
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Chaja P.

autor

Koronowicz T.

• Institute of Fluid-Flow Machinery PAS, Fiszera 14, 80–952 Gdansk, Poland,

Bibliografia

• [1] Rogers A L, Manwell J F and Wright S 2006 Wind Turbine Acoustic Noise, University of Massachusetts at Amherst, White Papers
• [2] Uzun A and Hussaini Y 2008 A Computational Study on Tip Vortex Noise, AIAA Paper, 2008–3506
• [3] Uzun A and Hussaini Y 2005 Towards Tip Vortex Noise Prediction by High-Order LES on Overset Grids, AIAA Paper, 2005–2865
• [4] Koronowicz T, Tuszkowska T and Wilczyński L 2000 TASK Quart. 2 203
• [5] Koronowicz T, Tuszkowska T and Wilczyński L 2000 Polish Maritime Research 7 3
• [6] Jarzyna H, Koronowicz T and Szantyr J 1996 Design of Marine Propellers, Maszyny Przepływowe, Ossolineum, 20
• [7] Koronowicz T and Szantyr J A 2006 Acta Acustica united with Acustica 92 175