The cooling wind tunnel with new technology

The current cooling wind tunnel was built in 1972 as part of the expansion of the Feuerbach/Germany Tech Center as the "Wind Tunnel II". Then as now, the cooling wind tunnel was the benchmark of the industry and has been improved continuously. The largest reconfiguration to date was begun in December 2012 and completed at the beginning of May 2013.

Very high continuous speeds can be achieved in this tunnel at temperatures of up to 50°C and the overall “engine cooling” system can be tested under realistic conditions. Unlike the climatic wind tunnel, the incident flow of the slip stream onto the cooling module of a vehicle is measured here, from passenger cars to heavy commercial vehicles.

Today, travel speeds of up to 250 km/h for passenger cars and up to 100 km/h for commercial vehicles can be simulated, allowing extremely realistic cooling capacity measurements to be taken.

With its new blower, an incident flow surface of over 6 square meters can be achieved for commercial vehicles. With the new system, the airflow from 13.3 square meters is applied to the desired cross section via a nozzle. The flow profiles can be significantly more uniform, particularly for large commercial vehicles, making the measurements even closer to reality.