摘要
用计算流体动力学方法对车辆周围的流场进行数值模拟在汽车设计中得到广泛应用。利用CFD技术对某房车进行外流场数值分析,获得其阻力系数、速度场分布和压力场分布,分析结果得出房车结构有3个区域是形成压差阻力的主要原因,其中房车尾部形成的两个涡流影响最大。最后根据模拟的流线对房车的结构优化提出建议。
The numerical simulation of car external airflow field using aerodynamics method has been widely used in the design of car style. In this paper, numerical analysis of external flow field for a recreational vehicle is used by CFD technology. Drag coefficients, velocity field distribution and pressure field distribution are obtained. The analysis results show three areas of recreational vehicle structure are the main cause for pressure drag. Two vortices formed at the tail of recreational vehicle have the greatest influence. At last, according to these simulation charts, some suggestions are put forward for structural improvement.
出处
《农业装备与车辆工程》
2015年第10期46-50,共5页
Agricultural Equipment & Vehicle Engineering
关键词
CFD
房车
速度场
压力场
CFD
recreational vehicle
velocity field
pressure field
