摘要
湍流模型的选取是汽车空气动力学数值模拟研究中一个极其重要的环节,对提升数值模拟计算结果的精确性具有重大意义。对4种常用的湍流模型(k-ε,RNG k-ε,Realible k-ε,SST k-ω)进行介绍,阐述了4种模型的自身特点以及适用范围,分析了其在汽车空气动力学数值模拟中的国内外研究应用,指出综合多种湍流模型优势进行升级运用可以使得数值模拟计算结果的精确性更高。
The selection of turbulence model is one of the most important steps in the numerical simulation research of automotive aerodynamics,which is of great significance to improve the accuracy of numerical simulation results.Four commonly used turbulence models including standard k-ε,RNG k-ε,realible k-ε,and SST k-ωare introduced in this paper,the characteristics and application scope of the four kinds of models are expounded,and their research and application in the numerical simulation of automobile aerodynamics at home and abroad are analyzed.It is pointed out that the accuracy of the numerical simulation results can be improved by upgrading the advantages of various turbulence models.
出处
《汽车工程师》
2020年第3期49-52,共4页
Automotive Engineer
关键词
汽车
空气动力学
数值模拟
湍流模型
Automotive
Aerodynamics
Numerical simulation
Turbulence models
