نتایج جستجو برای: aerodynamic noise

تعداد نتایج: 205620  

Journal: :Journal of the Visualization Society of Japan 2008

Journal: :International Conference on Aerospace Sciences and Aviation Technology 1985

Journal: :The Journal of the Acoustical Society of America 1957

Journal: :Transactions of the Visualization Society of Japan 2001

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 2013

Journal: :The Journal of the Acoustical Society of America 2013
Seunghoon Lee Seungmin Lee Soogab Lee

Aerodynamic noise from a wind turbine is numerically modeled in the time domain. An analytic trailing edge noise model is used to determine the unsteady pressure on the blade surface. The far-field noise due to the unsteady pressure is calculated using the acoustic analogy theory. By using a strip theory approach, the two-dimensional noise model is applied to rotating wind turbine blades. The n...

2004
W. Würz A. Herrig K. Braun S. Wagner

Within the work of the EU-funded SIROCCO project new airfoils for the tip region of two reference wind turbines are being designed with the objective to reduce the trailing-edge noise while maintaining the performance. The present paper focuses on the description of the optimization tools along with the aerodynamic and aeroacoustic prediction methods used. Comparisons with detailed boundary-lay...

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