用新的相关火焰模型对火花点火发动机燃烧过程的多维模拟(英文)  

Multi Dimensional Simulation of the Combustion Process in Spark Ignition Engines with a New Coherent Flame Model

作　　者：蒋德明[1] 杨迪[1] 

机构地区：[1]西安交通大学

出　　处：《燃烧科学与技术》1998年第3期312-319,共8页Journal of Combustion Science and Technology

基　　金：国家"八五"攀登计划资助项目

摘　　要：本文在ＫＩＶＡ－Ⅱ程序中实现了由作者提出的一个新的相关火焰模型。该模型的火焰面积密度的毁灭项中，从分形几何的角度出发引入了湍流的作用。通过对工质为丙烷的火花点火发动机进行的变工况计算，对新模型与Ｂｏｕｄｉｅｒ的燃烧模型进行了对比。结果表明，新模型合理地考虑了湍流的作用，计算结果与实验值吻合更好。A new coherent flame model put forward by the authors has been realized in KIVA Ⅱ program in this paper.The effect of turbulence is introduced in a new destruction term of flame surface density by fractal method.The comparison of the new model and Boudiers model has been carried out through multi dimensional simulation to combustion process under various operating conditions in two S.I.engines.The results show that the new model devised by the authors achieves substantial success in taking account of turbulence effects reasonably.

关 键 词：燃烧模型 多维模拟 火花点火发动机 

分 类 号：TK401[动力工程及工程热物理—动力机械及工程] TK16