基于一三维模型耦合仿真的柴油机进气系统优化  

Optimization of Diesel Intake System based on 1D/3D Coupling Model

作　　者：殷玉恩[1] 田永海[1] 刘胜[1] 

机构地区：[1]中国北方发动机研究所,山西大同037036

出　　处：《小型内燃机与摩托车》2011年第2期75-77,共3页Small Internal Combustion Engine and Motorcycle

摘　　要：建立了某柴油机整机一维热力学模型和不同容积集气腔三维CFD模型,通过一三维模型耦合进行进气系统瞬态仿真研究,根据模拟结果分别计算了不同容积集气腔对应的各缸进气量和进气不均匀度,并对进气不均匀度进行了评价,根据进气量和进气不均匀度确认了最优化的进气系统。A diesel 1D thermodynamics model and several 3D intake plenum CFD models of different volume are set up.A coupling simulation between diesel 1D model and intake system 3D models is performed.The intake massflow and unevenness are calculated on the base of simulation results and then the intake unevenness is evaluated,at last the most optimum design is certified considering intake massflow and unevenness.

关 键 词：柴油机 进气系统 集气腔 一三维耦合 进气不均匀性 数值仿真 优化设计 

分 类 号：TK423.44[动力工程及工程热物理—动力机械及工程]