Built environment

We provide a holistic solution for all aspects of external built environment, broadly, acoustics, wind climate and wind loads.

Wind climate

Wind comfort is assessed using CFD simulations to quickly and accurately provide insight into the wind climate before or during the design of a new development. We can asses the pedestrian comfort on criteria like Lawson’s or the Dutch Standard NEN 8100. Areas which are unsafe or have wind nuisance can be identified and dealt with by using trees, canopies, balcony railings etc. to overcome the nuisance.

Wind loads

Calculating wind loads is an essential part for the design of structures and buildings. In most cases this load is calculated using the standard EN 1991-1-4. However, this standard assumes that wind always approaches perpendicularly, with a wind speed depending on location and height. This is not always the case in practice and possibly can lead to both over- and underestimation of the wind load. The expected wind load can be calculated in more detail by means of CFD simulations. This adds an extra level of certainty, but can also save costs without compromising safety. We regularly apply this type of simulation for high-rise buildings, ships/off-shore, structures mounted on buildings such as advertising letters, railings, etc.


Noise pollution in urban environment is an increasing concern to the authorities. There is an increasing demand from the authorities for demonstrating that the acoustic measures applied on balconies/windows/loggias actually work in reducing noise levels. We can not only simulate urban noise and effect of the measures but also indoor acoustics using a combination of Ray-tracing and FEM. We often calculate sound levels for indoor acoustics, urban noise, traffic/industry noise.

Pollutant dispersion

Air Pollutant dispersion in urban environment is an area of health concern. The accurate simulation of pollutant distributions on and near buildings is critical for building design and evaluation, especially in urban environments. CFD can play a vital role predicting pollution concentrations and their dispersion, thereby could also be used to verify building design ideas to avoid pollutant concentrations near residential areas.