基于数值模拟的柴油机进气道预测设计研究  

The Research for the Forecast Design of Diesel Engine Inlet Port Based on Numerical Simulation

作　　者：尤国栋[1] 苏铁熊[1] 卢志国[2] 蔡忠周[2] 王家雄[2] 

机构地区：[1]中北大学机电工程学院,太原030051 [2]中国北方发动机研究所,大同037036

出　　处：《车辆与动力技术》2008年第2期49-52,共4页Vehicle & Power Technology

摘　　要：利用大型数值模拟软件Fire,结合数值模拟和稳流试验等现代方法,对某新型柴油机进气道进行了预测设计.以流量系数为研究重点,给出了无涡流直气道的设计依据、三维模型、CFD仿真模型、数学模型及其试验方案.计算结果和试验结果基本吻合,验证了利用数值模拟等方法实现柴油机进气道预测设计的可行性,为进一步分析气道内流场及各种参数提供依据.By using the large-scale numerical simulation software Fire, and the modem method of numerical simulation and the intake port steady flow, a forecast design of a new diesel inlet port example was carried out . Flow coefficient is a very important parameter, because of its veracity , the design bases on the no swirl vertical intake port, three-dimensional model, CFD model, mathematics model and the project of the intake port steady flow. The simulation results are very closed with experimental resuits. It proves the feasibility of the forecast design of diesel engine inlet port based on Numerical Simulation.

关 键 词：数值模拟 进气道 CFD 

分 类 号：TK423.4[动力工程及工程热物理—动力机械及工程]