Analysis of Engine Cooling System for a Passenger Vehicle 912505
A numerical simulation is carried out to analyze the cooling air flow field through the radiator and engine compartment. The governing equations for steady two-dimensional, incompressible, turbulent flow are solved with the two-equation k-ε model for turbulence. In the case of engine idling condition, a potential flow analysis is carried out to obtain the boundary conditions for the viscous flow computation, by the assumption of a line sink located at the position of cooling fan. The measurements of velocity profile in the engine compartment and around the front-end of a vehicle are also made to compare with the numerical results. The agreement between the numerical and experimental resuls is fairy good. It is concluded from the present study that a 2-D computation is a fast and efficient tool for predicting the cooling air flow rate through the radiator.
Jongsoo Jumg, Nahmkeon Hur, Kwang Ho Kim, Chun Sik Lee
Korea Institute of Science and Technology, KOREA
International Pacific Conference On Automotive Engineering