Após a introdução dos conceitos fundamentais para a descrição do vento natural e da simulação numérica na secção anterior, vamos agora destacar a primeira tarefa essencial do engenheiro: defining the problem and objectives.
The main objectives in wind tunnel experiments (wind engineering) or numerical calculations (computational wind engineering) can be summarized as follows; see Figure 2:
- Calculation of wind velocity distributions to determine wind comfort and as a basis for the calculation of material transport (smoke, pollutants, etc.).
- Calculation of flow fields resulting from thermal effects (possibly in combination with radiation models to determine surface temperatures).
- Calculation of static and dynamic wind loads on structures (pressure and suction effects as well as friction forces).
- Calculation of the coupling of dynamic structural behavior with the flow (fluid-structure interaction (FSI), wind-wave interaction).
The application fields require a strong variation in analysis focus. The focus of the WTG guideline and this manual is primarily on load determination for structural planning aspects to ensure stability.