Latest Issue
Windtech International May June 2024 issue





On Proper Physical Modelling of Atmospheric Boundary Layer Flow over Hills

petersenOne of today’s hot topics in energy policy and its economics is the reduction of uncertainties in wind resource assessment and forecasting. This article provides details of the state of the art for wind tunnel modelling for atmospheric flow over topography. Such physical modelling can be helpful in various ways. At present, numerical tools for wind energy assessment usually fail in complex terrain. Additionally, most numerical models cannot take wind gusts into account because of computational limits. So-called turbulent fluctuations of atmospheric wind speed are currently the focus of a lot of wind energy research. Better understanding of wind turbulence will help to reduce wind turbine damage and will improve wind energy production. Wind tunnel flows are able to depict turbulence effects if they are set up carefully, and are also able to test numerical models. To summarise, wind tunnel measurements can serve as a method of validating numerical models and thereby predicting data with both high spatial and time resolution.

By Graciana Petersen, Bernd Leitl and Michael Schatzmann, EWTL Environmental Wind Tunnel Laboratory, Germany


Use of cookies

Windtech International wants to make your visit to our website as pleasant as possible. That is why we place cookies on your computer that remember your preferences. With anonymous information about your site use you also help us to improve the website. Of course we will ask for your permission first. Click Accept to use all functions of the Windtech International website.