Wind turbines are notorious for their immense noise at close proximity and this is a large reason for their absence in heavily populated areas. However researches at Lehigh University have took to studying the Owl, as its wings are able to suppress noise in order to go unheard by its prey. This is due to wing porosity, the term used to describe the space in between the wing that allows air to pass through. Using the formula they developed, the results for pressure distribution on a wing and curvature of a wing section can be determined buy a single equation. This equation can be used by turbine designers to both minimize noise and maximize aerodynamics in future turbines.
"The fact that our result is explicit and in closed form for arbitrary porosity distributions makes it easy to implement in analyses of aerodynamics vs aero-acoustics to anticipate whether or not a particular porosity design will be effective for a given application," said Jaworski, assistant professor of mechanical engineering and mechanics.
No comments:
Post a Comment