WSP’s modelling experts are specialists in the application of Computational Fluid Dynamics (CFD) simulation across multiple sectors and disciplines, providing innovative and customized engineering solutions for the built environment.

Our philosophy is to use the best tools available to support the robust development of design solutions. We believe that CFD techniques provide the most detailed and whole-field approach for a complex performance-based design. Our international experts regularly employ these methods to interrogate problems, realize architectural aspirations and justify alternative design options.

Performance-Based Design

We use Computational Fluid Dynamics to test ideas and prototype options, to troubleshoot existing solutions and to add value to projects by exploring sensitivities and demonstrating an optimized design. Detecting problems, improving performance and identifying areas to reduce capital and running costs are valuable throughout the design process, from concept to detailed design.

Key Usage of CFD

CFD modelling is a multidisciplinary tool with typical applications for the built environment, including ventilation for occupant comfort and safety, the impact of tall buildings on local microclimates, dispersion of pollutants, aero-acoustic fan design and other issues relating to fluid flow.

Typical examples include effective natural ventilation concepts for green building design, CO fume and smoke exposure analysis in parking ventilation systems, cooling strategies for data centre equipment, smoke control solutions for tunnels, residential and retail atria, bridge pile erosion due to scouring, aero-acoustic redesign of fan ducts to reduce need for silencers and thermal comfort for occupants using HVAC.

The performance of a ventilation system is an important part of occupants’ experience of a building. CFD is commonly used to demonstrate ventilation solutions for complex public buildings such as schools, stadia, museums, train stations, tunnels and offices, demonstrating what comfortable temperatures and air speeds can be maintained, and optimizing the overall strategy where it can.

External airflow modelling assesses the impact of wind around planned developments at pedestrian and terrace levels. It can also be used to determine how external pollutants might spread around a building, and whether there is a risk of expelled flue gases being re-entrained.