In the solver
What it is
Simulate the wind through the built environment and map wind speed at pedestrian level around your buildings, so each area can be rated against pedestrian comfort and safety criteria such as Lawson.
Typical run
Indicative single-GPU estimates - they scale with domain size and the accuracy you need.
~200M
Mesh cells (LBM nodes)
12-36
Wind directions
Hours
Runtime per direction
1x 24 GB GPU
Typical hardware
How it works
Build the development and its surroundings, starting from the urban / low-rise geometry preset.
Drive the domain with a synthetic-eddy (SEM) inlet so the incoming wind carries a realistic atmospheric boundary layer.
Run LES across the wind directions of the local wind climate - the wind-tunnel template sweeps them automatically.
Export wind speed on a horizontal plane at pedestrian height and rate it against comfort and safety criteria.
What you get
Why you can trust our results
We are not a physical wind tunnel - we are a CFD specialist whose results are validated against wind tunnel measurements. AeroSim is an international reference in computational wind engineering.
Peer-reviewed
Published solver
JWEIA, 2026
Peer-reviewed: Oliveira Jr., W., et al. “Nassu: A high performance LES solver for computational wind engineering”. Journal of Wind Engineering & Industrial Aerodynamics, 274 (2026) 106465.
Rather have it done for you?
The same study, delivered as a service
Our team delivers this study end to end, with a technical report ready for design.
See Pedestrian Comfort & Safety
Other use cases
Ready to simulate?
Open the web solver and start from a template.