二阶矩封闭模型应用于内燃机缸内湍流的计算  

Application of the second moment closure models to computations of in cylinder turbulent flows in ICE

作　　者：李芳[1] 解茂昭[1] 陈石[1] 

机构地区：[1]大连理工大学动力工程系

出　　处：《大连理工大学学报》1999年第4期542-546,共5页Journal of Dalian University of Technology

摘　　要：首次把雷诺应力微分模型（ＤＳＭ）中非线性的ＳＳＧ模型用于内燃机缸内三维不稳定流动的计算，并与ＬＲＲ模型、ｋ－ε模型计算所得的湍流强度和多普勒激光测速仪的实验结果作了比较．结果表明，ＤＳＭ模型，尤其是ＳＳＧ模型。The SSG turbulence model which is one of non linear differential stress models (DSM) is applied to prediction of in cylinder flows of internal combustion engines. An assessment among SSG, LRR and k ε results is made by comparing with experimental data of turbulence intensity. It is shown that DSM models, especially the SSG model, could better describe the non isotropic characteristics of the in cylinder turbulent flows in ICE.

关 键 词：内燃机 湍流 计算机模拟 缸内湍流 矩封闭模型 

分 类 号：TK402[动力工程及工程热物理—动力机械及工程]