Analysis of engine cooling including flow nonuniformity over a radiator

In this study, the analysis of engine room flows has been done and the cool ant temperature at radiator inlet has then been predicted using a three-dim ensional radiator model that includes effects of nonuniformity of air veloc ity distribution across a radiator. In addition, the technique of rotating reference frame was utilized for cooling fans to improve the prediction of flow rate across a radiator. Finally, this model was verified through wind tunnel tests and applied to modify the shape of front-end openings of the e xisting vehicle. The results show that the current engine cooling model suc cessfully predicts the variation of engine cooling performance with the sha pes of front-end openings.