June 22 2009   Source: BMW- Munich

Video- A Look at BMW's New Wind Tunnel

BMW has spent the last few years investing in its EfficientDynamics program, a whole-vehicle approach to improving the efficiency of the automobile. One of the most critical elements to achieving maximum efficiency is optimizing vehicle aerodynamics. To further this cause, BMW has built the most modern wind tunnel in the auto business.

The new facility, known as the Aerodynamics Test Center, or ATC, is part of the BMW Group's FIZ technology campus in Munich, where aerodynamic engineers can interact directly with the company's designers, constructors, drivetrain engineers and other specialist. The five-story-tall building took three years to build, and occupies more than six acres (approximately 270,000 square feet). This single facility encompasses operations that were once carried out in five different facilities that were as far apart as 20 kilometers. So while the center aims to improve the efficiency of BMW vehicles, its first goal is to improve the efficient dynamics of the engineering staff, which includes as many as 500 people.

The ATC, like most other BMW facilities, is an architectural statement that foretells the special work that takes place within its walls. Behind the unique plenum-shaped building lies the ability to conduct research that can't be done in other wind tunnels. For instance, the center is equipped to measure aerodynamic efficiency in varying conditions, such as when the vehicle is cornering, taking into account the various movements and positioning of the bodywork. There is also the ability to test aerodynamics with multiple vehicles, such as the effects of overtaking another car. Full-scale models can be tested at speeds up to 186 mph.

As BMW continues to optimize its vehicles for fuel efficiency, the Aerodynamic Testing Center will play a crucial role. The video below offers a glimpse inside this amazing new facility.