酒神唐家三少>高中物理选修3
验货单燃空当量比对直喷甲醇发动机混合气浓度分布影响
十首经典老歌
基于一款经柴油机改装的非均匀分布的五喷孔的缸内直喷甲醇发动机,利用商用CFD数值计算软件计算模拟了不同燃空当量比下缸内混合气浓度分布情况。计算结果表明:经特殊改装的喷孔能够提高火花塞附近的混合气浓度,同时还改善缸内整体混合气浓度分布,使得缸内混合气浓度分布更加合理,缩小混合气浓度极度稀薄区域面积。
标签:甲醇发动机;混合气浓度;模拟计算;燃空当量比打电话谁先挂
坐月子可以吃什么
Abstract: Bad on a modified diel engine with non-uniform distribution of five injection holes, a commercial CFD numerical calculation software was ud to simulate the distribution of in-cylinder mixture concentration under different fuel/air equivalent ratios. The calculation results show that the specially modified nozzle can increa the mixture concentration near the spark plug and improve the overall mixture concentration distribution in the cylinder, which makes the mixture concentration distribution in the cylinder more reasonable and reduces the area of extreme rarefaction of mixture concentration.