进气管内三维稳态流动特性的数值分析

摘要

Three-dimensional simulations are performed on the steady flow field of multi-cylinder diesel engine intake manifolds．The flow characteristics in the intake manifolds have been analyzed and the mass flow rates and discharge coefficients of exits are calculated to investigate the unevenness of multi-cylinder engines．%对多缸发动机进气管内稳态流场进行了三维数值模拟，分析了各缸分别进气时进气管内的流动特性，计算了进气管各出口处的质量流量和流量系数并用以研究各缸的进气不均匀性。