Wind plays a decisive role in the design of the human environment, particularly in the con-
ception and planning of high-rise buildings. Due to the global trend towards ever slender and
lighter constructions, they are increasingly exposed to complex wind excited vibrations, which
confront engineers with great challenges.
Whilst these forces have so far mostly been determined experimentally in wind tunnels, nu-
merical methods of flow simulation are now increasingly finding their way into the discipline
of wind engineering. In addition to wind tunnel investigations, they already play an important
role in the automotive and aircraft industries.
The research objective of this work is the validation of a computational fluid dynamics simula-
tion on the basis of a model high-rise, which was experimentally investigated in an international
benchmark study by different wind tunnel institutions.
First, the natural wind conditions are generated synthetically. The resulting turbulent flow is
investigated in detail and serves as the basis for the numerical wind tunnel.
Subsequently, the aerodynamic forces acting on the building in different wind directions are
determined by means of a large eddy simulation. In order to extend the available computing
power, the simulations were carried out in cooperation with the Chair of Computer Architecture
and Parallel Systems on the Google Cloud Computing platform.
Finally, the dynamic structural response is investigated. For this purpose, on the one hand
the finite element method is used, on the other hand the spectral analysis method which is
also used in wind tunnel investigations is applied.
«
Wind plays a decisive role in the design of the human environment, particularly in the con-
ception and planning of high-rise buildings. Due to the global trend towards ever slender and
lighter constructions, they are increasingly exposed to complex wind excited vibrations, which
confront engineers with great challenges.
Whilst these forces have so far mostly been determined experimentally in wind tunnels, nu-
merical methods of flow simulation are now increasingly finding their way into th...
»