【摘要】 迄今国内外对汽车空气动力性能的研究仍以风洞测试为主,采用CFD软件对汽车外流场进行模拟是用来测试汽车气动阻力系数的一种新方法。本文用FLUENT软件通过对网格质量和地面条件不同的两组模型进行数值计算,结果表明,高质量的网格和采用移动的地面边界条件能很好地提高计算精度。更多还原

【Abstract】 This paper introduces a new way for achieving the aerodynamic drag coefficient of car by adopting CFD softwase.By using the FLUENT software,the two group models with different mesh and ground boundary conditions are numerically simulated.The results show that the higher quality mesh and moving ground conditions will help to improve the numeration precision.更多还原