Aero Optim Series

Wind Tunnels for Automobiles

Complete system image

Garage-sized system

Leeward view

Test on a sports car

Actual build (demo version)

Smoke visualization

Track and wheelbase adjustment

Intake view

Fans can be added for more height

Description

The Aero Optim enables precise aerodynamic testing for automobiles in the size of a garage. The system is portable, pitless and can be easily installed, and it measures both drag and lift coefficients to three decimal places. Compared to large wind tunnels, the measured values agree to within 3%, and data can be extrapolated accurately for speeds up to about 180 km/h (see comparison data PDF for details). The simple environment wind tunnel provides can be taken advantage of for various applications such as prototyping, heat-transfer tests, visualization, and measurements for local wind velocity and pressure.

Specs

Table 1. Specification of Wind Tunnel

Model name	Aero Optim 21J/21E
Wind speed	1～15 m/s (3.6～54 km/h)
Wind speed distribution	Within ±8％ per unit¹
Wind speed fluctuation	Within 1% per unit²
Exit area	630 width x 630 height [mm]
Unit size	1470 length x 686 width x 683 height [mm]
Fan	7.5 kW IPM motor axial fan
Noise	105 dB¹
Weight	160 kg
Power	3 phase 200 VAC 50/60 Hz

¹At rated fan speed: 2500 rpm
²Measured by dividing average wind speed from standard deviation at the outlet center

Table 2. Specification of Measurement Table

Dimentions	2980mm Width × 6277mm Length ×400mm Height
Load Cell Range1	Wheelbase Range 1800mm~3210mm
Load Cell Range1	Track Range 1200mm~1780mm
Weight	Approx. 4700kg
Maximum Capacity	2500kg or 625kg per wheel
Load Cell Output2,3	Lift Force (LF) Measurement Capacity ±1000N Measurement Precision ±0.25N (under 500N) ±0.05% Reading (over 500N)
	Drag Force (DF) Measurement Capacity 0~1000N Measurement Precision ±0.125N (under 250N) ±0.05% Reading (over 250N)
	Side Force (SF) Measurement Capacity ±2000N Measurement Precision ±0.25N (under 500N) ±0.05% Reading (over 500N)

1 The tire center axis is used as reference.
2 Measurements are shown per wheel.
3 For a four-wheel scale, moments (roll, pitch and yaw) are derived with functions.

■ PDF document
Catalog (File Size：about 4MB)

Sample data (File Size：about 1.8MB)

Comparison data (File Size：about 0.5MB)