Renewable sources of energy like the one from the wind play an increasingly important role in many countries throughout the world. In Germany, this fact was further emphasized by the decision of the federal government to generate the country’s energy supply primarily from renewables by 2050 in response to the Fukushima crisis. To achieve this goal, extensive research has to be done to further increase the efficiency of today’s modern wind turbines. In order to contribute to that purpose, this thesis aimed at creating a detailed CAD model of an existing wind turbine blade which can then be used in a CFD simulation to predict realistic wind turbine behaviour and performance. The work starts with a brief overview of the history of wind energy engineering from ancient constructions to today’s turbines. It then explains the relevant physical properties which are needed to evaluate and explain turbine performance under various conditions. Among several different research projects that focused on wind engineering, one was chosen and its official documentation was used to create an accurate CAD model of the wind turbine blade which was developed in its context. This entire modelling process is explained in a detailed description. At the end of the thesis it is depicted how this model was then used to transform it into a mesh which is needed for a computational fluid dynamics simulation of the blade. In the framework of this paper, blades with two different tip extensions were modelled. When their meshes were created, several inaccuracies in the result compared to the original CAD model showed up which make further research in the domain necessary.     «

Renewable sources of energy like the one from the wind play an increasingly important role in many countries throughout the world. In Germany, this fact was further emphasized by the decision of the federal government to generate the country’s energy supply primarily from renewables by 2050 in response to the Fukushima crisis. To achieve this goal, extensive research has to be done to further increase the efficiency of today’s modern wind turbines. In order to contribute to that purpose, this th...     »