基于KIVA的内燃机燃烧室内湍流流动的数值模拟计算  

Numerical Simulation of In-Cylinder Turbulent Flows of Internal Combustion Engines Based on the Engine CFD Code KIVA

作　　者：邹振宇[1] 解茂昭[2] 刘晶[3] 

机构地区：[1]吉林建筑工程学院土木工程学院,长春130118 [2]大连理工大学能源与动力学院,大连116024 [3]国家开发银行吉林省分行,长春130021

出　　处：《吉林建筑工程学院学报》2012年第4期25-32,共8页Journal of Jilin Architectural and Civil Engineering

摘　　要：内燃机缸内湍流的研究是个十分重要而且复杂的课题,数值模拟技术为其提供了有效的研究方法.本文利用CFD软件KIVA分别采用标准k-ε,RNGk-ε模型在无旋流和有旋流的两种工况下,对轴对称的ω型燃烧室内的湍流流动进行二维和三维数值模拟计算,并把计算结果与实验数据进行对比,得到了内燃机缸内湍流流动的特性.本文为内燃机港内湍流研究提供了一种比较好的研究方法,此方法和计算结果为内燃机的性能开发与优化设计提供依据.Turbulent flows in the cylinder of internal combustion engines are invariably complicated. Numerical sim- ulation is a good way to solve the problem. This thesis performs comparative study on three versions of eddy - viscos- ity models （EVM）, i. e. conventional k - e model, RNG k - e model. 2 - D and 3 - D numerical computations are carried out for o0 combustion chamber. The effects of swirling and curvature are taken into account. The text com- pares the result with the experimental data and obtains the character of turbulent flows of internal combustion en- gines. This thesis provides a well method to study turbulent. The result and method provides the laws of diesel en- gine development and optimum design.

关 键 词：湍流流动 数值模拟 KIVA 

分 类 号：TK45[动力工程及工程热物理—动力机械及工程]