内燃机实现稀薄燃烧技术的缸内流场分布规律研究  

Research on the Distribution Rule of In-cylinder Flow-field for Realizing the Lean-burn Technology in Internal Combustion Engine

作　　者：王强[1,2] 乔安平[1] 

机构地区：[1]太原理工大学,山西太原030024 [2]山西省煤炭机械制造责任有限公司,山西太原030031

出　　处：《科技情报开发与经济》2009年第17期156-159,共4页Sci-Tech Information Development & Economy

摘　　要：采用数值仿真和试验研究相结合的方法,对缸内混合气体的流场分布规律进行数值模拟,对运算结果进行了分析,发现气体的压力场、温度场、速度场等流场的分布随点火提前角、空燃比、温度和压力的变化而发生改变的规律,为点火系统的能量计算提供实验依据,使稀薄燃烧最终得以实现。Adopting the method of combining the numerical simulation and experimental investigation, this paper makes the numerical simulation on the flow-field distribution rule of the mixed gas in cylinder, and makes analysis on the calculated results, finds the rules that the distribution of some flow-fields such as the pressure field, temperature field, and velocity field of the gas change with the changes of the angle of ignition advance, air fuel ratio and the variation of temperature and pressure, which provide the experimental foundations for the energy calculation of the ignition system making the lean-bum be realized finally.

关 键 词：内燃机 稀薄燃烧技术 流场分布规律 

分 类 号：TK403[动力工程及工程热物理—动力机械及工程]