废气引射抽尘流场数值模拟  

Numerical Computation of Exhaust Gas for Drawing Dust

作　　者：武文豪[1] 马成荫[2] 张保成[1] 

机构地区：[1]中北大学,山西太原030051 [2]内蒙古第一机械集团科研所,内蒙古包头014032

出　　处：《装备制造技术》2006年第4期41-42,94,共3页Equipment Manufacturing Technology

摘　　要：通过对原废气引射抽尘装置的三维引射掺混流场进行模拟计算分析,并根据数值模拟结果对喷管结构进行改进,以使其更好地满足涡轮增压发动机的使用需要。原结构的数值模拟结果与实际实验相吻合,计算结果与实际物理过程符合。在本文中给出了主喷管喷嘴形状进行改进后的流场模拟情况,并对结果进行分析讨论。本文的计算方法可以有效地用来预测引射流量比和揭示混合流场特性。The 3-D flow fields in ejector-mixers were analogy computation,which is the origin model of the drawing dust with the exhaust gas.Base on the result of the simulation,the structure of the nozzle was modified to better satisfy the requirement of turbocharged engine.The numerical simulation results of the original structure are well matched with the experiments,and the computation results and the actual physical process are coincided,which show that the present calculation is reasonable.In this paper,the simu...

关 键 词：引射抽尘 数值模拟 三维流动 掺混 波瓣喷管 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]