Measurement of the Radiator cooling flow by the 'Test Radiator'

This technique is used to map the air velocities through the car radiator. It utilizes a special 'Test Radiator' in place of the original radiator.

In this way both the flow volume through the radiator and the velocity distribution over the radiator surface can be measured and optimized in a short time.

Examples of these measurements are shown in the following pictures.
[Example of radiator layout - Copyright © 1990 Pininfarina][Test Radiator - Copyright © 1990 Pininfarina]

References

[1] "Development and Use of LDV and Other Airflow Measurement Techniques as a Basis for the Improvement of Numerical Simulation of Engine Compartment Air Flows", H. Berneburg, A. Cogotti, SAE Congress Paper n° 930294. Detroit, Michigan, March 1993