Car Parking Ventilation

CFD Analysis

Venturka delivers project-specific CFD smoke and ventilation simulations using PyroSim FDS — validating your jet fan layout against ASHRAE, BS 7346-7, and NFPA standards before a single fan is installed.

Every Venturka CFD report is prepared in full compliance with the three internationally recognized standards that govern car park fire safety: <b>ASHRAE</b> Principles of Smoke Management, <b>BS 7346-7</b> Components for Smoke & Heat Control, and <b>NFPA 130</b>. These standards define the exact tenability thresholds — temperature below 121°C, visibility above 30m, and corridor velocity at 5 m/s — that our simulations validate against.

Smoke Dispersion
Soot concentration mapped across the floor plan at every 300s interval throughout the full simulation.
Visibility
Sight-line distances verified at 1.7m height. Pass criterion: 30m across all evacuation routes (NFPA 130).
Airflow & Velocity
Jet fan thrust validated. Dead-volume zones identified. 5 m/s corridor standard confirmed (BS 7346-7).
Temperature & CO
Peak temp at 1.7m checked against 121°C ASHRAE limit. CO dispersal tracked under 4 MW fire load.

What is CFD Analysis?

Computational Fluid Dynamics (CFD) is a physics-based simulation method that simultaneously models airflow, heat transfer, smoke propagation, and CO concentration in 3D. Venturka uses PyroSim FDS software to build your car park geometry from project drawings and run time-stepped simulations — producing detailed data at every point across the full 1500-second evacuation window.

ASHRAE
Principles of Smoke Management
Defines the 121°C temperature tenability limit at 1.7m height and smoke control design methodology for enclosed car parks.
BS 7346-7
Components for Smoke & Heat Control
Specifies the 4 MW car fire model, fan activation timing (130-180s), and the 5 m/s corridor velocity standard for car parks.
NFPA 130
Fixed Guideway Transit & Passenger Rail
Sets the 30m minimum visibility criterion at 1.7m height required for safe occupant evacuation during a fire emergency.

What is CFD Analysis?

Computational Fluid Dynamics (CFD) is a physics-based simulation method that simultaneously models airflow, heat transfer, smoke propagation, and CO concentration in 3D. Venturka uses PyroSim FDS software to build your car park geometry from project drawings and run time-stepped simulations — producing detailed data at every point across the full 1500-second evacuation window.

01
Submit drawings
Share your car park layout in DWG or PDF along with proposed fan positions.
02
3D modeling
We build the geometry in PyroSim FDS with mesh cells from 0.05 to 0.4m for accuracy.
03
Fire simulation
1500s transient scenario at 4 MW peak. Smoke, temp, velocity and CO at every time step.
04
Report delivery
Full PDF with result maps, compliance tables and fan layout recommendations.

Validate your ventilation design before installation.