To obtain reliable and accurate results for various applications in structural engineering at the interface with wind engineering, selecting the appropriate CFD (Computational Fluid Dynamics) calculation method is crucial. Depending on the problem and specific calculation requirements, the necessary parameters, resolution, and type of CFD calculation vary. This dependency between the application case, relevant physical quantities, and suitable numerical method is illustrated in the following summary table. The range of application cases extends from quasi-static loads to complex interaction processes, such as flutter in lightweight surface structures. The choice of calculation method is tailored to the characteristic parameters and the desired level of detail.
Figure 6 presents a systematic assignment of different application cases to the required parameters and the corresponding CFD calculation methods. For example, for quasi-static calculations, mean force coefficients and wind profiles are needed, and both steady-state and unsteady calculations from Group 1 or 2 may be applied. In contrast, more complex dynamic phenomena, such as fluctuations or interactions, require unsteady methods from Groups 3 or 4. This highlights that the complexity of the task and the specific requirements for physical accuracy significantly influence the choice of the appropriate calculation method.