WindSim ® Computational Flow Dynamics Model Testing Using Databases from Two Wind Measurement Stations

Data gathered for the last several years from the two wind stations, located at the Susara fields, was used to create local wind climate and meteorological parameter database. Extrapolation of the values contained in the database to an area of several square kilometers in the vicinity of the measurement stations, and to a height corresponding to technical properties of wind turbines, serves as a tool for planning future wind farms. While predicting wind resources, some uncertainties can occur which are usually related to measured data quality and reliability of extrapolation procedure. In case of hilly terrains with complex spatial configuration, reliability of the wind resources prediction is directly dependent to applied model of air mass movement dynamics. Focus of this paper was testing of the Computational Flow Dynamics (CDF) model implemented in the WindSim ® software package. Testing was performed by comparing values of the measured and simulated mean wind speed at 30m. By varying and correcting the boundary conditions it was shown that applied model was able to predict mean wind speed value of one station while using the mean wind speed value of the second wind station as input information in the simulation, with an error comparable to measurement uncertainty. Simulation of air mass movement gave an insight to a wind speed fields at 30m for a spring - summer period. These results are important for the future wind exploitation in Serbia, and can provide better analysis of the climate conditions at the agricultural and vineyard area of Susara fields.