Pedestrian Wind Comfort CFD
Greater insight, earlier in the architectural development process
Pedestrian wind comfort is a critical consideration in the design of modern urban environments. As building forms become more complex and developments push higher and denser, understanding how wind interacts with the built environment is essential to ensuring safe, comfortable and usable public spaces.
Navier provides pedestrian wind comfort assessments using Computational Fluid Dynamics (CFD) to help architects, developers and consultants understand wind conditions around buildings at an early stage. Our studies combine local wind climate data, detailed aerodynamic modelling and recognised comfort criteria to provide clear, actionable insight that supports planning and design decisions.
What is pedestrian wind comfort assessment?
Assessment of pedestrian wind comfort requires the combination of several key elements:
- Local wind statistics, typically derived from nearby meteorological stations
- CFD modelling of the proposed development and surrounding context
- Appropriate pedestrian comfort and safety criteria
- Clear interpretation of results in the context of how spaces will be used
CFD allows wind conditions to be evaluated across the entire site for a range of wind speeds and directions. This is particularly valuable in complex urban settings, where uncomfortable or unsafe conditions may only occur under specific wind directions or seasonal scenarios.
Why use CFD?
Our clients increasingly choose CFD as a practical alternative or complement to wind tunnel testing. CFD enables:
- Rapid evaluation of multiple wind directions and design options
- Detailed visualisation of flow behaviour throughout the domain
- Early identification of problem areas such as corner accelerations, downwash and channeling effects
- Faster turnaround and typically lower cost compared to physical testing
CFD is especially effective during early and mid design stages, where design flexibility is highest and mitigation strategies can be explored efficiently.
Directional wind analysis
Pedestrian comfort issues are often highly directional. A location that is comfortable for most of the year may become problematic under a small number of prevailing wind directions.
Navier routinely carries out directional wind sweeps to understand how wind conditions vary across a site. This approach allows us to identify worst case scenarios, assess exceedance frequency, and focus mitigation efforts where they will be most effective.
Wind mitigation and design optimisation
Where uncomfortable or unsafe conditions are identified, we can support the development and testing of mitigation strategies. This may include:
- Screens, canopies or localised wind shielding
- Podium, corner or massing refinements
- Landscaping or architectural features intended to modify flow
- Comparison of multiple design options to demonstrate improvement
CFD allows these measures to be tested quickly by modifying the geometry and re-running targeted simulations, providing quantitative evidence of performance improvements.
Key outputs
Our pedestrian wind comfort assessments typically provide:
- Mean wind speed maps for individual directions and combined scenarios
- Flow visualisations highlighting key aerodynamic features
- Pedestrian comfort and safety classification maps
- Mean pressure coefficients on buildings, where required
- Clear identification of risk areas and recommended mitigation measures
All outputs are presented in a clear, design-focused format suitable for technical teams, planners and stakeholders.
Typical applications
- Planning support for new developments
- Tall buildings and mixed-use schemes
- Public realm, plazas and pedestrian routes
- Building entrances, terraces and amenity spaces
- Option testing and mitigation design
Working with Navier
Navier’s wind engineering team works closely with design teams to provide early insight and practical recommendations. Our focus is on delivering studies that directly inform decision-making, rather than purely academic analysis.
If you would like to discuss a pedestrian wind comfort assessment or understand how CFD could support your project, please get in touch.
Need Help?
Contact Navier on +44(0)115 6979141 or info@navier-flow-consultants.com for a free initial consultation with one of our CFD experts and receive a competitive fixed price quotation, with zero obligation. Alternatively, if you’d like to learn more about how we structure a CFD project, browse our ‘How We Work’ page.