Browse Publications Technical Papers 2000-01-1375
2000-03-06

Development of a Closed Loop, Full Scale Automotive Climatic Wind Tunnel 2000-01-1375

A closed loop full-scale automotive climatic wind tunnel is described. The tunnel simulates wind and rain as well as several road conditions. It generates under controlled heat loading, wind speeds of up to 50kmh with different approach boundary conditions, rains from drizzle to cloudburst and road inclines up to 15° in any direction. The design and optimization process of the tunnel functions is outlined and examples of its use in vehicle development are given. The size constraint and the need for a compact design are important features of the tunnel. The tunnel provides an important test bed for close scrutiny of the relationship between rain ingress, vehicle speed, road condition, heat loading and vehicle geometry. The tunnel can also be used to study vehicle thermal management, vehicle thermal comfort, engine cold starting, and wipers efficiency in sever cold weather. Computational Fluid Dynamic (CFD) simulation is used to optimize the performance of a number of key tunnel components. The resulting tunnel is approximately 9.5m in length, 9.5 m in height and 3 m in width.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Performance Improvement of HVAC by Optimizing the Design of Blower Involute & Casing

2010-01-1060

View Details

TECHNICAL PAPER

Numerical and Experimental Investigation of Flow and Temperature Fields around Automotive Cooling Systems

2005-01-2006

View Details

TECHNICAL PAPER

A Combined Digital and Experimental Process for the Aerodynamic Optimization of the New Lavida

2013-01-0204

View Details

X