The relationship between flow characteristics and aerodynamic drag of van-body truck

摘要

The surface airflow characteristics of a van-body truck are investigated by means of force measurement, pressure measurement and flow visualization. The influence of the surface airflow is examined by adjusting the gap and height difference between driv- er cab and van. And the relationship between the flow characteristic and aerodynamic drag are analyzed to provide a reference for designing aerodynamic shape of van-body truck and drag-reducing attachments.