浅析内燃机缸内三种湍流涡黏度模型  

Comparison Among Three k-ε Models in the Cylinder

作　　者：邹振宇[1] 刘晶[2] 李义[3] 

机构地区：[1]吉林建筑工程学院土木工程学院,长春130118 [2]国家开发银行吉林省分行,长春130021 [3]长春医学高等专科学校,长春130031

出　　处：《吉林建筑工程学院学报》2012年第5期15-19,共5页Journal of Jilin Architectural and Civil Engineering

摘　　要：内燃机缸内气体流动是极其复杂的三维湍流运动,其数值模拟及准确预测是一个迄今尚未圆满解决的课题.本文详细分析了内燃机缸内三种模型的原理,比较了三种湍流涡黏度模型,即标准k-ε模型,RNGk-ε模型和re-alizablek-ε模型各自的优缺点,并在此基础上总结出每个模型的适用范围.Gas flows in the cylinder of internal combustion engines are invariably complicated three-dimensional and turbulent.Numerical simulation and accurate prediction of turbulent flows are a problem that has not still been solved.This thesis performs a comparative study on three versions of eddy-viscosity models（EVM）,i.e.conventional k-ε model,RNG k-ε model and realizable k-ε model.Furthermore,this thesis study the scope of every model.

关 键 词：湍流流动 标准k-ε模型 RNGk-ε模型 realizablek-ε模型 

分 类 号：TU312.3[建筑科学—结构工程]