Wind and Weather

Wind, rain and solar irradiation can for example influence the comfort experience of (semi) open or closed spaces. Furthermore, wind pressure has an direct influence on the performance of natural ventilated volumes, such as open (multilevel) car parks. Also, you could think of the specific wind pressure on a structure or machine, e.g. wind turbines, building façade component.

With CFD simulations it is possible to identify the resulting impact and above all provide you with the possibility to examine and compare solutions. With our advanced soft- and hardware (ANSYS and 128 core HPC) we can model detailed products (e.g. weather louvres) up to entire cities. Below you’ll find some example studies, if your topic has not been discussed, never hesitate to challenge us with your request.

Wind hinder and danger

Wind around existing or new high rise (higher than 30 meter) can lead to hinder and dangerous situations. In respect to hinder think of opening the main entrance door or walking around the building corner. Everyone knows buildings where they have experienced wind hinder. With a CFD simulation the origin of the hinder can be analyzed and with this information we can, in collaboration with you, reduce the hinder to and acceptable level. Besides hinder, dangerous wind speeds can occur due to structures in cities. We analyze the wind climate using the Dutch NEN8100 guideline or a standard of your choice.

Wind turbine

Our knowledge in CFD modelling, available hardware and ANSYS CFX software enables us to model your wind turbine rotor and calculate the produced torque for a range of angular velocities. Efficiency vs. tip-speed ratio (TSR) graphs of a blade design can be produced easily.

Besides a detailed analysis of the rotor/blade performance, the performance of a group of wind turbines can be investigated for any (type of) terrain. Also, the shadow effects for an entire wind turbine park can be predicted. We can support you to design the most efficient blades and wind turbine park on or offshore.

Weather – Solar irradiation

Transparent buildings give occupants a good feeling and they keep them connected with the surroundings. The downside is that solar irradiation has a large effect on the indoor climate. Architects and building owners usually leave the challenge of the indoor climate to the consultant who must solve it without changing the identity of the building. Three dimensional CFD modelling provides you, as a designer, with great information on how the climate is affected by solar irradiation.

Weather – Rain

In some particular cases it is important to investigate the rain impact on structures, mainly in combination with certain wind conditions. Rain will be represented as water droplets and the impact per surface area can be determined.