Technical Paper
Road Measurements of Front End Components' Effect on Vehicle Engine Compartment Air Flow
1993-03-01
930145
The objective of this study was to determine the effects of vehicle front end components on engine compartment air flow. Isothermal road tests were conducted on a 1989, four door sedan car having a 3.0 liter V-6 engine and an automatic transmission. The vehicle under study had a combined grille area of 0.1194 square meters. The engine occupied approximately 35% of the under hood plan view area. The air velocities measured at the radiator exit section (between the radiator and the fan shroud) were the data of interest. No coolant was circulating in the OE radiator or heater core, and no refrigerant was flowing in the OE condenser or evaporator. However, constant air temperature runs were accomplished by having a remote radiator installed at the rear of the vehicle for engine cooling during the tests.
