摘要
模型比例和风洞截面对汽车流场产生影响。应用FLUENT软件,分别对不同的车模比例和风洞截面形状进行气动性能仿真。结果表明:阻塞比在一定范围内,汽车气动参数变化平缓;选用不同的阻塞比在三种典型风洞模型中进行仿真计算,结果相差很大;闭式风洞的阻力系数较开式风洞高,开式风洞的升力系数较闭式风洞高。
Model proportion and wind tunnel section has influence to automotive flow field.The different model proportion and wind tunnel section are simulated respectively by application of FLUENT.The results show that the automotive pneumatic parameter changes gently in a certain range of clogging ratio;the simulation results of 3 typical wind tunnel models in different clogging ratio are different;the coefficient of drag of the close wind tunnel is higher,and the coefficient of lift of the open wind tunnel is higher.
出处
《上海汽车》
2010年第3期27-31,47,共6页
Shanghai Auto
