柴油机螺旋进气道三维数值模拟  

3D Numerical Simulation of Diesel Helical Intake Port

作　　者：罗马吉[1,2] 李忠照[1] 丁洪春[2] 张超建[2] 

机构地区：[1]武汉理工大学汽车工程学院,武汉430070 [2]江苏江淮动力股份有限公司,江苏盐城224000

出　　处：《拖拉机与农用运输车》2008年第5期62-63,66,共3页Tractor & Farm Transporter

摘　　要：运用CFD软件STAR-CD对某拖拉机用柴油机螺旋进气道进行了三维数值模拟。通过模拟计算可以比较准确地得到直观的进气道和缸内流场。模拟计算的涡流比及流量系数与试验结果具有较好的一致性,并对偏差产生原因进行了分析。The three-dimensional flow field in a diesel engine helical intake port was numerically simulated using STAR-CD, and the 3D flow field was obtained. The evaluations, swirl ratio and flow coefficient, obtained from the simulation were validated on the steady flow test rig. And the causes of the evaluation offsets were analyzed.

关 键 词：柴油机 CFD 螺旋进气道 数值模拟 

分 类 号：TK422[动力工程及工程热物理—动力机械及工程] TK421.4