汽车车身造型的计算机辅助设计

Computer-aided design for automobile body modeling

利用计算机辅助设计方法代替传统的风洞实验进行车身造型建模和CFD数值模拟具有开发周期短,费用低,有良好的复现性,可进行可视化处理等优点。研究表明根据流经车身的速度大小适当地改变车身的曲线形状将有效地减少气动阻力系数,从而提高汽车的性能。

The traditional wind tunnel experiment was replaced by the computer-aided design method to carry on the automobile body modeling and the CFD numerical value simulation. Many advantages ,such as shore development period,low expense ,good reappearance and visible processing,are shown. The research showed that a suitable automobile body curve shape designed by the flowing through the automobile body can reduce the aerodynamical resistance coefficient effectively. Thus it will enhance the automobile the performances.