基于数值模拟法的柴油螺旋机进气道性能研究  

Research on Performance of Diesel Engine Inlet Based on Numerical Simulation Method

作　　者：张庆才 夏道华 宋龙龙 ZHANG Qingcai;XIA Daohua;SONG Longlong(Shandong Vocational College of Science and Technology,Weifang 261053)

机构地区：[1]山东科技职业学院

出　　处：《内燃机》2020年第1期1-4,共4页Internal Combustion Engines

摘　　要：根据高等内燃机原理,使用李斯特公司多维仿真软件AVL-Fire对柴油发动机螺旋进气道和切向进气道的结构和性能进行仿真,能够得到相应的流量系数和涡流比值。同时,取气道中3个不同气门升程的速度矢量图、压力云图和混合气流动迹线图。通过研究仿真结果,可以发现该进气道的设计中存在的不足之处,进而为发动机进气系统的优化提供理论的依据。According to the principle of high-grade internal combustion engine,the structure and performance of the spiral inlet and tangential inlet of diesel engine are simulated by using Liszt's multi-dimensional simulation software AVL-Fire,and the corresponding flow coefficient and eddy current ratio can be obtained.At the same time,the speed vector diagram,pressure cloud map and mixed gas flow trace diagram of three different valve lifts in the airway are taken.By studying the simulation results,we can find the shortcomings in the design of the inlet,and provide a theoretical basis for the optimization of the engine intake system.

关 键 词：内燃机 数值模拟 螺旋进气道 优化 

分 类 号：TK413[动力工程及工程热物理—动力机械及工程]