抄録
In order to introduce the wind turbine generator system (WTGS), an assessment of the wind energy resources is inevitable in a wind park. In the flat terrain such as in Europe and USA, the resource assessment can be easily performed by using a small number of anemometers. In a mountainous and complex terrain with rough surface, however, where a site proposed for a WTGS is often locates such as in Japan, contribution of local effects on the wind energy resources is quite large. Thus, in order to evaluate the wind energy resources accurately, enormous labor and money is necessary if the wind measurement with the anemometer is the only tool for the assessment. this paper describes an experimental and numerical analysis of a flow over simple shaped hill, in order to investigate the influence of the mountainous terrain on the atmospheric boundary layer flow.