Experimental investigation on air-side flow-field and water-side heat exchange performance of radiator based on matrix fans.

This paper investigated the effect of four different fan matrix configurations on the air-side flow-field and water-side heat exchange performance of a radiator. With the introduction of fan matrix configurations, the wake region behind bumper beam is enlarged, and the vortex pair breaks up much rapidly, thus enhancing the turbulence intensity of wake. The vorticity reaches the minimum level under the fan matrix N = 6, which could reduce the energy loss of the airflow upstream of radiator. The fan matrix configuration can increase the velocity uniformity of the airflow passing through the radiator, especially for the fan matrix N = 6. Furthermore, due to the fan matrix N = 6 achieves the maximum heat dissipation uniformity of radiator, and it also achieves the best heat exchange performance. Consequently, to achieve the maximum cooling air mass flow rate and heat exchange performance, it should carry out an optimization process during the design phase of fan matrix. [ABSTRACT FROM AUTHOR]