The Turbulence Intensity of the Wind Bora

The Bora is a cold and gusty wind which occurs along the eastern coast of the Adriatic Sea and its hinterland. It is most commonly from the north or northeast direction and often achieves stormy strength. Due to the direct connection of the Bora and the complex terrain, the speed of the wind Bora is rapidly changing while crossing obstacles and the turbulent flow occurs. For the classification of wind turbines the wind turbulence intensity with the wind speed are the basic parameters. The measurements of the Bora characteristics were made at Hrgud and Morine in the area of Eastern Herzegovina on an extremely complex terrain. The standardized measurement equipment was used which is mounted on a measuring mast at the height of 78 m. The measured values of the turbulence intensity of the Bora, have been analyzed and compared with the corresponding standards and recommendations.