摘要
汽车空调风道结构影响着风道中气流的流动阻力、气动噪声和出风指向性。在车型开发的早期准确地计算风道中的流体运动可以在缩短开发周期和减少开发成本的基础上,提高乘员舱的舒适性。为了减少CFD仿真的误差,当前的研究探讨四种湍流模型对风道压损和流量分配的影响,并与四种模型的计算均值对比。结果表明,四种湍流模型的压损仿真值差异在32Pa以内,v2f湍流模型在压损和流量分配的计算上与四种湍流模型计算的均值最为接近。
The flow resistance,aerodynamic noise and air directionality in the air duct was influenced by duct geometry structure.Accurately calculating fluid flow states in the air duct can improve the thermal comfort of the passenger compartment on the basis of shortening the development cycle and reducing development costs.In order to reduce the error of CFD simulation,the current study selected four turbulence models and explored the difference on pressure loss and flow distribution of air duct.Compared with the average value of four models,results showed that the v2f turbulence model was closest to the mean value of the four turbulence models in the calculation of pressure loss and flow distribution,which showed a good superiority.
作者
黎帅
林银辉
江风雨
Li Shuai;Lin Yinhui;Jiang Fengyu(GAC Automotive Research&Development Center,Guangzhou,511434;JAC Volkswagen Automotive Co.,Ltd,Hefei,230022)
出处
《制冷与空调（四川）》
2019年第6期613-616,653,共5页
Refrigeration and Air Conditioning
关键词
汽车空调
风道
CFD仿真
湍流模型
automotive air conditioning
air duct
CFD simulation
turbulence model
