Design and Wind-Tunnel Verification of Low-Noise Airfoils for Wind Turbines

Autor:	Ewald Krämer, M. Kamruzzaman, W. Würz, Thorsten Lutz, Andreas Herrig
Rok vydání:	2007
Předmět:	Airfoil Engineering XFOIL Wind power Computer science Turbulence business.industry Aerospace Engineering Reynolds stress Structural engineering Aerodynamics NACA airfoil Noise Aeroacoustics business Marine engineering Wind tunnel
Zdroj:	AIAA Journal. 45:779-785
ISSN:	1533-385X 0001-1452
Popis:	A method for the prediction of the airfoil trailing-edge far-field noise is presented. The model employs the airfoil analysis code XFOIL to determine the initial and boundary conditions for a subsequent boundary-layer analysis using the finite-difference code EDDYBL featuring a Reynolds stress turbulence model that finally provides the input data for the noise prediction by a modified TNO Institute of Applied Physics model. The prediction scheme was applied in the European silent rotors by acoustic optimization project to design new, quieter airfoils for the outer blade region of three different wind turbines in the megawatt class. The objective was to reduce the airfoil self-noise without loss in aerodynamic performance
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::be5356ec76c1846951fce3e4dc8c5292 https://doi.org/10.2514/1.27658 Zobrazit plný text záznamu