Aerodynamic effects by cooling flows within engine room of a car model

14th International Conference on Fluid Control, Measurements and Visualization

Sawaguchi, T.^1 ; Takakura, Y.^1

Course of Mechanical Engineering, Graduate School of Tokai University, Japan^1

关键词: Aerodynamic effect;    Change of characteristics;    Cooling flows;    Engine loading;    Engine rooms;    Moving belts;    Opening areas;    Wind tunnel experiment;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/249/1/012012/pdf
DOI  :  10.1088/1757-899X/249/1/012012

来源: IOP

【 摘 要 】

The purpose of this research is to clarify the change of characteristics of aerodynamic drag and lift of a car by the engine loading system (engine arrangement) and the air inlet system (opening area and position) with and without a radiator in wind-tunnel experiments. A simplified car model with 1/5 scale is generated with reproduction of the engine room covered with the transparent acryl externals for visualization. In the wind-tunnel experiments, the moving-belt ground board is adopted to include ground effects with force measurements by use of load cells. The flows are visualized by the smoke method. As results, with enlargement of the opening area, the drag increased overall although depending largely on the engine loading system and the inlet opening position, the front lift increased and the rear left decreased; the effect of the radiator was to relieve the change of the drag and lift.